OpenTelemetry MCP client spans #875

Job	Run time
checks / readme-snippets	12s
checks / pre-commit	38s
checks / test (3.10, locked, ubuntu-latest)	53s
checks / test (3.11, locked, windows-latest)	2m 27s
checks / test (3.10, lowest-direct, windows-latest)	2m 25s
checks / test (3.11, lowest-direct, ubuntu-latest)	49s
checks / test (3.10, locked, windows-latest)	2m 25s
checks / test (3.12, lowest-direct, ubuntu-latest)	53s
checks / test (3.10, lowest-direct, ubuntu-latest)	54s
checks / test (3.11, lowest-direct, windows-latest)	2m 39s
checks / test (3.12, locked, ubuntu-latest)	55s
checks / test (3.13, lowest-direct, ubuntu-latest)	46s
checks / test (3.13, locked, windows-latest)	2m 35s
checks / test (3.11, locked, ubuntu-latest)	54s
checks / test (3.12, lowest-direct, windows-latest)	3m 10s
checks / test (3.13, lowest-direct, windows-latest)	2m 33s
checks / test (3.14, locked, windows-latest)	3m 16s
checks / test (3.13, locked, ubuntu-latest)	49s
checks / test (3.14, lowest-direct, windows-latest)	2m 23s
checks / test (3.14, locked, ubuntu-latest)	2m 17s
checks / test (3.12, locked, windows-latest)	3m 22s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 12s
all-green	4s
	38m 31s

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