Drop `Content` and `args` parameter in `ClientSessionGroup.call_tool` #4067

Job	Run time
checks / readme-snippets	14s
checks / pre-commit	30s
checks / test (3.10, highest, ubuntu-latest)	50s
checks / test (3.11, lowest-direct, ubuntu-latest)	44s
checks / test (3.11, highest, ubuntu-latest)	47s
checks / test (3.11, lowest-direct, windows-latest)	2m 28s
checks / test (3.10, lowest-direct, ubuntu-latest)	45s
checks / test (3.11, highest, windows-latest)	2m 27s
checks / test (3.10, highest, windows-latest)	2m 51s
checks / test (3.12, highest, windows-latest)	3m 55s
checks / test (3.14, lowest-direct, windows-latest)	2m 8s
checks / test (3.13, lowest-direct, windows-latest)	2m 17s
checks / test (3.14, highest, windows-latest)	2m 20s
checks / test (3.13, highest, ubuntu-latest)	44s
checks / test (3.12, highest, ubuntu-latest)	55s
checks / test (3.13, lowest-direct, ubuntu-latest)	43s
checks / test (3.13, highest, windows-latest)	2m 24s
checks / test (3.10, lowest-direct, windows-latest)	2m 12s
checks / test (3.12, lowest-direct, ubuntu-latest)	51s
checks / test (3.14, highest, ubuntu-latest)	1m 9s
checks / test (3.12, lowest-direct, windows-latest)	3m 26s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 11s
	35m 51s

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