Release 0.28.0 #3151

Job	Run time
test_min_deps (ubuntu-latest)	1m 3s
test_min_deps (windows-latest)	1m 32s
Integration Tests (pdm.lock)	25s
test (3.11, ubuntu-latest)	1m 3s
test (3.10, ubuntu-latest)	1m 24s
test_min_deps (macos-latest)	1m 13s
Integration Tests (pdm.minimal.lock)	24s
test (3.12, ubuntu-latest)	1m 18s
test (3.12, windows-latest)	2m 0s
test (3.10, windows-latest)	2m 3s
test (3.10, macos-latest)	56s
test (3.13, ubuntu-latest)	1m 9s
test (3.12, macos-latest)	48s
test (3.13, macos-latest)	1m 16s
test (3.11, macos-latest)	59s
test (3.13, windows-latest)	1m 52s
test (3.14, macos-latest)	1m 17s
test (3.14, ubuntu-latest)	1m 10s
test (3.14, windows-latest)	1m 56s
test (3.11, windows-latest)	1m 41s
Combine & check coverage	14s
	25m 43s

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