Tests

Update grpo_trainer.py (#2973) #7669

Job	Run time
Tests without optional dependencies	14m 52s
Check code quality	10s
Tests with minimum versions	32m 27s
Tests with dev dependencies	33m 18s
Tests (3.9, ubuntu-latest)	30m 51s
Tests (3.9, windows-latest)	24m 30s
Tests (3.10, ubuntu-latest)	33m 22s
Tests (3.10, windows-latest)	25m 44s
Tests (3.11, ubuntu-latest)	30m 54s
Tests (3.11, windows-latest)	27m 31s
Tests (3.12, ubuntu-latest)	33m 1s
Tests (3.12, windows-latest)	26m 56s
	5h 13m 36s

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