feat: add validate_output parameter to call_tool decorator #4139

Job	Run time
checks / readme-snippets	13s
checks / pre-commit	33s
checks / test (3.10, highest, ubuntu-latest)	46s
checks / test (3.11, highest, ubuntu-latest)	46s
checks / test (3.11, lowest-direct, windows-latest)	2m 30s
checks / test (3.10, lowest-direct, ubuntu-latest)	43s
checks / test (3.10, highest, windows-latest)	2m 30s
checks / test (3.10, lowest-direct, windows-latest)	2m 20s
checks / test (3.11, highest, windows-latest)	2m 20s
checks / test (3.11, lowest-direct, ubuntu-latest)	42s
checks / test (3.12, lowest-direct, ubuntu-latest)	47s
checks / test (3.13, lowest-direct, ubuntu-latest)	45s
checks / test (3.13, lowest-direct, windows-latest)	3m 24s
checks / test (3.12, highest, windows-latest)	3m 34s
checks / test (3.12, highest, ubuntu-latest)	51s
checks / test (3.13, highest, windows-latest)	3m 42s
checks / test (3.12, lowest-direct, windows-latest)	3m 9s
checks / test (3.13, highest, ubuntu-latest)	42s
all-green	5s
	30m 22s

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