docs: correct create_mcp_http_client default timeout docstring #2250

Job	Run time
checks / pre-commit	32s
checks / readme-snippets	11s
checks / test (3.10, lowest-direct, windows-latest)	3m 33s
checks / test (3.10, locked, windows-latest)	2m 30s
checks / test (3.10, locked, ubuntu-latest)	52s
checks / test (3.10, lowest-direct, ubuntu-latest)	56s
checks / test (3.11, locked, windows-latest)	2m 46s
checks / test (3.11, lowest-direct, ubuntu-latest)	52s
checks / test (3.13, lowest-direct, windows-latest)	2m 47s
checks / test (3.13, locked, ubuntu-latest)	46s
checks / test (3.11, lowest-direct, windows-latest)	3m 21s
checks / test (3.11, locked, ubuntu-latest)	57s
checks / test (3.12, lowest-direct, windows-latest)	3m 37s
checks / test (3.12, locked, windows-latest)	3m 53s
checks / test (3.12, lowest-direct, ubuntu-latest)	59s
checks / test (3.12, locked, ubuntu-latest)	1m 0s
checks / test (3.13, lowest-direct, ubuntu-latest)	53s
checks / test (3.14, lowest-direct, windows-latest)	2m 22s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 26s
checks / test (3.13, locked, windows-latest)	2m 31s
checks / test (3.14, locked, windows-latest)	3m 2s
checks / test (3.14, locked, ubuntu-latest)	2m 21s
all-green	4s
	42m 11s

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