Suppress KeyboardInterrupt tracebacks from MCPServer.run #2540

Job	Run time
checks / pre-commit	34s
checks / readme-snippets	14s
checks / test (3.10, lowest-direct, ubuntu-latest)	50s
checks / test (3.10, lowest-direct, windows-latest)	1m 12s
checks / test (3.11, lowest-direct, ubuntu-latest)	48s
checks / test (3.11, lowest-direct, windows-latest)	1m 31s
checks / test (3.11, locked, windows-latest)	1m 44s
checks / test (3.12, locked, windows-latest)	1m 2s
checks / test (3.13, lowest-direct, windows-latest)	1m 19s
checks / test (3.12, lowest-direct, ubuntu-latest)	54s
checks / test (3.10, locked, ubuntu-latest)	51s
checks / test (3.13, locked, ubuntu-latest)	45s
checks / test (3.12, locked, ubuntu-latest)	51s
checks / test (3.13, lowest-direct, ubuntu-latest)	51s
checks / test (3.13, locked, windows-latest)	1m 20s
checks / test (3.10, locked, windows-latest)	1m 8s
checks / test (3.12, lowest-direct, windows-latest)	1m 49s
checks / test (3.11, locked, ubuntu-latest)	47s
checks / test (3.14, locked, windows-latest)	2m 4s
checks / test (3.14, locked, ubuntu-latest)	1m 54s
checks / test (3.14, lowest-direct, windows-latest)	1m 44s
checks / test (3.14, lowest-direct, ubuntu-latest)	50s
all-green	4s
	25m 6s

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