Update changelog for v1.28 release. #48

Job	Run time
initialize / define-constants	6s
test / lint-and-build	36s
test / test-coverage (ubuntu-latest, 3.10)	37s
test / test-coverage (ubuntu-latest, 3.11)	32s
test / test-coverage (macos-latest, 3.11)	29s
test / test-coverage (windows-latest, 3.12)	1m 26s
test / test-coverage (windows-latest, 3.13)	1m 27s
test / test-coverage (ubuntu-latest, 3.12)	38s
test / test-coverage (macos-latest, 3.13)	30s
test / test-coverage (ubuntu-latest, 3.13)	33s
test / test-coverage (windows-latest, 3.11)	1m 27s
test / test-coverage (windows-latest, 3.10)	1m 51s
test / test-coverage (macos-latest, 3.12)	32s
test / test-coverage (macos-latest, 3.10)	53s
report / report-coverage	38s
docsgen / generate	57s
docsgen / publish	15s
package / package	14s
publish-pypi	16s
publish-github	43s
	14m 40s

Provide feedback