Tests

ci: Install `tcl-dev` when building Comdb2 #981

Job	Run time
Build bloomberg-comdb2 from source	8m 2s
Build python-comdb2 source distribution	36s
Test suite (3.13)	33s
Test suite (3.8)	47s
Test suite (3.12)	59s
Test suite (3.9)	37s
Test suite (3.10)	32s
Test suite (3.14-dev)	39s
Test suite (3.11)	40s
	13m 25s

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