Tests

Add Python 3.14 support #944

Job	Run time
Build bloomberg-comdb2 from source	4m 27s
Build python-comdb2 source distribution	29s
Test suite (3.13)	36s
Test suite (3.9)	34s
Test suite (3.14-dev)	44s
Test suite (3.8)	49s
Test suite (3.10)	28s
Test suite (3.12)	39s
Test suite (3.11)	30s
	9m 16s

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