PYTHON-5542 Prepare for 4.15.1 Release (#2537) #8183

Job	Run time
static	4m 53s
Docs Checks	40s
CPython 3.9-ubuntu-latest	11m 27s
CPython pypy-3.10-ubuntu-latest	12m 20s
Typing Tests (3.11)	59s
Link Check	4m 43s
CPython 3.13t-ubuntu-latest	11m 29s
DocTest	1m 10s
Typing Tests (3.9)	1m 4s
Test using minimum dependencies and supported Python	39s
Make an sdist	15s
Test async's minimum dependencies and Python	40s
Install from SDist and Test	56s
	51m 15s

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