feat(server): restore `dependencies` parameter on MCPServer #1679

Job	Run time
checks / readme-snippets	13s
checks / pre-commit	37s
checks / test (3.10, locked, windows-latest)	2m 10s
checks / test (3.11, locked, windows-latest)	2m 36s
checks / test (3.12, locked, ubuntu-latest)	59s
checks / test (3.13, locked, ubuntu-latest)	46s
checks / test (3.13, lowest-direct, ubuntu-latest)	54s
checks / test (3.10, lowest-direct, ubuntu-latest)	54s
checks / test (3.10, lowest-direct, windows-latest)	2m 34s
checks / test (3.12, lowest-direct, windows-latest)	3m 7s
checks / test (3.12, lowest-direct, ubuntu-latest)	56s
checks / test (3.11, locked, ubuntu-latest)	50s
checks / test (3.11, lowest-direct, windows-latest)	3m 5s
checks / test (3.10, locked, ubuntu-latest)	54s
checks / test (3.14, locked, ubuntu-latest)	2m 17s
checks / test (3.13, locked, windows-latest)	2m 24s
checks / test (3.11, lowest-direct, ubuntu-latest)	58s
checks / test (3.14, lowest-direct, windows-latest)	2m 9s
checks / test (3.14, locked, windows-latest)	2m 45s
checks / test (3.12, locked, windows-latest)	3m 16s
checks / test (3.13, lowest-direct, windows-latest)	2m 41s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 14s
all-green	2s
	38m 21s

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