ci: prevent regenerate-models from opening duplicate empty PRs #809

Job	Run time
PR title check	9s
Checks / Type check / Type check (3.11)	12s
Checks / Lint check / Lint check (3.12)	13s
Checks / Lint check / Lint check (3.14)	12s
Checks / Package check	15s
Checks / Doc check / Docs check	1m 26s
Checks / Type check / Type check (3.12)	14s
Checks / Lint check / Lint check (3.13)	10s
Checks / Spell check	9s
Checks / Actions lint check	29s
Checks / Integration tests (3.11, ubuntu-latest)	2m 47s
Checks / Type check / Type check (3.14)	14s
Checks / Docstrings check	12s
Checks / Type check / Type check (3.13)	15s
Checks / Lint check / Lint check (3.11)	9s
Checks / Integration tests (3.14, ubuntu-latest)	2m 54s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.14)	49s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.11)	49s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.12)	47s
Checks / Unit tests / Unit tests (windows-latest, 3.11)	1m 7s
Checks / Unit tests / Unit tests (windows-latest, 3.12)	1m 10s
Checks / Unit tests / Unit tests (windows-latest, 3.14)	1m 7s
Checks / Unit tests / Unit tests (ubuntu-latest, 3.13)	47s
Checks / Unit tests / Unit tests (windows-latest, 3.13)	1m 27s
	18m 3s

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