Backport: Remove links in changelog to github milestones that no longer exist #3470

Job	Run time
Test Lint	1m 13s
check_release	1m 42s
test_docs	44s
Test Minimum Versions	2m 36s
test_without_debugpy (ubuntu-latest, 3.9)	1m 54s
link_check	3m 31s
build (ubuntu-latest, 3.10)	4m 37s
build (ubuntu-latest, 3.12)	5m 23s
build (ubuntu-latest, 3.9)	4m 27s
build (windows-latest, 3.10)	6m 47s
build (windows-latest, pypy-3.10)	6m 48s
build (macos-latest, 3.10)	4m 25s
build (ubuntu-latest, 3.11)	4m 28s
build (macos-latest, 3.12)	5m 12s
build (macos-latest, 3.11)	4m 26s
build (ubuntu-latest, 3.13)	4m 52s
build (ubuntu-latest, pypy-3.10)	3m 56s
build (windows-latest, 3.13)	6m 29s
build (macos-latest, 3.9)	4m 12s
build (windows-latest, 3.9)	6m 6s
build (windows-latest, 3.11)	6m 48s
build (macos-latest, pypy-3.10)	5m 5s
Make SDist	33s
build (macos-latest, 3.13)	4m 36s
Test Prereleases	2m 22s
build (windows-latest, 3.12)	7m 33s
Install from SDist and Test	1m 48s
coverage	12s
	1h 52m 45s

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