PYTHON-4780 Implement fast path for server selection with Primary #7753

Job	Run time
static	4m 13s
CPython pypy-3.10-ubuntu-latest	10m 26s
DocTest	50s
CPython 3.13t-ubuntu-latest	9m 24s
Docs Checks	52s
Make an sdist	12s
Typing Tests (3.11)	1m 14s
Test using minimum dependencies and supported Python	32s
Test async's minimum dependencies and Python	42s
Typing Tests (3.9)	1m 11s
CPython 3.13-ubuntu-latest	8m 57s
CPython 3.9-ubuntu-latest	9m 0s
Link Check	2m 46s
Install from SDist and Test	39s
	50m 58s

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