Tests

Add Python 3.14 support #942

Job	Run time
Build bloomberg-comdb2 from source	5m 25s
Build python-comdb2 source distribution	30s
Test suite (3.9)	28s
Test suite (3.11)	49s
Test suite (3.14.0-rc.1)	46s
Test suite (3.12)	41s
Test suite (3.13)	46s
Test suite (3.10)	33s
Test suite (3.8)	47s
	10m 45s

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