docs: revert repo URL rename (staying on ashimov/HawkAPI) #1

Job	Run time
Test (Python 3.13 free-threaded, experimental)	13s
Type check	14s
Memory Budget Check	14s
Lint	9s
Test (Python 3.12)	17s
Test (Python 3.13)	19s
Performance Regression Gate	19s
	1m 45s

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