6.x: Update PEP-639 license values in pyproject.toml #3641

Job	Run time
Test Lint	1m 5s
test_without_debugpy (ubuntu-latest, 3.9)	1m 51s
Test Minimum Versions	33s
Test Prereleases	2m 4s
build (ubuntu-latest, 3.9)	4m 9s
link_check	3m 49s
build (ubuntu-latest, 3.12)	4m 17s
Make SDist	36s
build (ubuntu-latest, 3.10)	4m 46s
build (ubuntu-latest, 3.11)	4m 0s
build (ubuntu-latest, pypy-3.10)	4m 12s
build (windows-latest, 3.11)	6m 22s
build (windows-latest, 3.12)	6m 21s
build (windows-latest, 3.9)	6m 24s
build (ubuntu-latest, 3.13)	4m 4s
build (windows-latest, pypy-3.10)	6m 12s
build (windows-latest, 3.10)	6m 23s
build (macos-latest, 3.11)	4m 36s
build (macos-latest, 3.10)	5m 44s
build (windows-latest, 3.13)	6m 22s
build (macos-latest, pypy-3.10)	4m 37s
build (macos-latest, 3.12)	4m 41s
build (macos-latest, 3.13)	4m 13s
check_release	1m 55s
build (macos-latest, 3.9)	5m 3s
test_docs	54s
Install from SDist and Test	2m 5s
coverage	1s
	1h 47m 19s

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