Bump patch to Python 3.13.11. (#336) #197

Job	Run time
Build vars	4s
CI / config	16s
CI / build	1s
CI / Cross-platform env test (${{ matrix.multiarch }})	1s
CI / CPython testbed (${{ matrix.platform }})	1s
CI / Briefcase testbed (${{ matrix.platform }})	1s
Make Release	1s
	25s

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