fix(errors): drop skip_creator_parsing advice for positional-only params

[lesnik512]

UnsupportedCreatorParameterError for a positional-only parameter without a default told users to "give the parameter a default or use skip_creator_parsing=True". The second option does not work: with skip_creator_parsing=True the provider raises CreatorCallError at resolve, with or without kwargs, because the creator is always called as creator(**kwargs) and a positional-only parameter cannot be bound by keyword. Giving the parameter a default is the only advice that works, so the message now says only that.

Found while fixing docs/troubleshooting/unsupported-creator-parameter-error.md in #547.

Other branches checked:

• The other skip_creator_parsing mention in types_parser.py is the type-hints-resolution warning, where it is advice for silencing the warning. That is correct and left as is.

Test: test_positional_only_param_raises_at_declaration now asserts the message does not mention skip_creator_parsing (failed before the fix).

[github-actions]

Benchmark

Details

Benchmark suite	Current: e1c26fe	Previous: 8ce868f	Ratio
benchmarks/test_guard_by_type.py::test_g16_resolve_by_type	3569972.1503107846 iter/sec (stddev: 1.5494445783145778e-8)	3442054.526547969 iter/sec (stddev: 2.143375745788722e-8)	0.96
benchmarks/test_guard_by_type.py::test_g17_resolve_by_type_large_registry	3675655.8628954412 iter/sec (stddev: 1.0900457024057369e-8)	3548434.840392541 iter/sec (stddev: 1.2827232048867815e-8)	0.97
benchmarks/test_guard_cold.py::test_g8_cold_first_resolve	15544.078749505006 iter/sec (stddev: 0.00005033834954918549)	15518.545714422256 iter/sec (stddev: 0.00004698793690022765)	1.00
benchmarks/test_guard_cold.py::test_g8b_cold_first_resolve_cached	13059.581514434542 iter/sec (stddev: 0.00013353950293183494)	13185.693699108479 iter/sec (stddev: 0.00010949077679688568)	1.01
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[1]	345.34058350643517 iter/sec (stddev: 0.00004055061916285414)	404.3230311283974 iter/sec (stddev: 0.00007048845657185601)	1.17
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[2]	332.9702149133916 iter/sec (stddev: 0.00004355040471478122)	383.4654873688378 iter/sec (stddev: 0.000046998100263502144)	1.15
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[4]	314.0655296058114 iter/sec (stddev: 0.000038755247073442534)	352.2463486495161 iter/sec (stddev: 0.00009127243270054909)	1.12
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[1]	1588.4221603106616 iter/sec (stddev: 0.0001834316476371474)	1626.7073683300935 iter/sec (stddev: 0.0001986442227433345)	1.02
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[2]	1288.6711693232185 iter/sec (stddev: 0.0002188524151275646)	1327.7632191013151 iter/sec (stddev: 0.00017288226483966492)	1.03
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[4]	940.5024585788044 iter/sec (stddev: 0.00022056601928849807)	960.0010675205933 iter/sec (stddev: 0.00017975799786761426)	1.02
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[1]	1374.3536515012963 iter/sec (stddev: 0.0011070350239969046)	1407.057453110696 iter/sec (stddev: 0.0010831166068909466)	1.02
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[2]	1185.7698839239843 iter/sec (stddev: 0.00020215614254054)	1175.7928128429965 iter/sec (stddev: 0.00021455490282242838)	0.99
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[4]	778.1712788184489 iter/sec (stddev: 0.00021488662164968644)	784.9046406926733 iter/sec (stddev: 0.00021119103540343572)	1.01
benchmarks/test_guard_lifecycle.py::test_g6_build_child_container	796539.656494995 iter/sec (stddev: 8.011063330980443e-8)	826944.4808698264 iter/sec (stddev: 4.169575359621365e-8)	1.04
benchmarks/test_guard_lifecycle.py::test_g6b_build_child_container_auto_scope	747572.5012636248 iter/sec (stddev: 3.221394233493295e-8)	754895.2503574233 iter/sec (stddev: 3.0409338412035246e-8)	1.01
benchmarks/test_guard_lifecycle.py::test_g7_request_lifecycle_batch	2431.4785084129617 iter/sec (stddev: 0.000012488611974332034)	2421.0815300750833 iter/sec (stddev: 0.000020424490014428993)	1.00
benchmarks/test_guard_lifecycle.py::test_g7c_event_loop_floor_control	57529.847612067155 iter/sec (stddev: 0.0000017872600510757674)	58408.76624586848 iter/sec (stddev: 0.0000018447825779836061)	1.02
benchmarks/test_guard_lifecycle.py::test_g13_teardown_at_scale	42945.49700083617 iter/sec (stddev: 0.0000020475882427175123)	43876.32191693938 iter/sec (stddev: 0.0000021012125198676007)	1.02
benchmarks/test_guard_lifecycle.py::test_g13b_teardown_at_scale_async_no_finalizers	563.9215062472709 iter/sec (stddev: 0.00005542602302767615)	553.8315819315635 iter/sec (stddev: 0.00011049984251667817)	0.98
benchmarks/test_guard_resolve.py::test_g1_transient_resolve	1900274.632422568 iter/sec (stddev: 1.3686158160282804e-7)	2179414.0503717246 iter/sec (stddev: 3.2116689283894473e-8)	1.15
benchmarks/test_guard_resolve.py::test_g2_cached_resolve	2899247.3002947364 iter/sec (stddev: 4.8477024749926025e-8)	3331944.800863088 iter/sec (stddev: 1.8996420430089775e-8)	1.15
benchmarks/test_guard_resolve.py::test_g3_deep_chain	752708.5558763844 iter/sec (stddev: 4.0035094894919106e-8)	728489.2646086639 iter/sec (stddev: 6.251243141025456e-8)	0.97
benchmarks/test_guard_resolve.py::test_g4_wide_resolve	444608.44568234106 iter/sec (stddev: 3.1322811703966714e-7)	468680.21058674285 iter/sec (stddev: 3.2602527219035675e-7)	1.05
benchmarks/test_guard_resolve.py::test_g5_cross_scope	1907910.775202175 iter/sec (stddev: 3.479432838538956e-8)	1866879.1921924949 iter/sec (stddev: 3.339221547534178e-8)	0.98
benchmarks/test_guard_resolve.py::test_g9_context_resolve	1056971.72737985 iter/sec (stddev: 1.41289514972713e-7)	1052288.8650783815 iter/sec (stddev: 1.333290563243788e-7)	1.00
benchmarks/test_guard_resolve.py::test_g12_override_active_resolve	738354.8155178382 iter/sec (stddev: 3.8913936358735685e-8)	720244.7622185523 iter/sec (stddev: 6.1118782837122e-8)	0.98
benchmarks/test_guard_resolve.py::test_g18_alias_hop	1848670.1194007634 iter/sec (stddev: 2.3468255093165935e-8)	1889630.0710914063 iter/sec (stddev: 4.658060565489605e-8)	1.02
benchmarks/test_guard_validate.py::test_g10_validate_deep_chain	22732.44108541361 iter/sec (stddev: 0.00002673276849368589)	22333.268360870607 iter/sec (stddev: 0.00003390432019260961)	0.98
benchmarks/test_guard_validate.py::test_g11_validate_wide	14042.647097976584 iter/sec (stddev: 0.000026936938996214267)	14119.363707672732 iter/sec (stddev: 0.000028698284721104412)	1.01

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