Add missing description fields to .github/actions/*/action.yml (#826) #5041

Job	Run time
ci-scope	4s
pre-commit / pre-commit	1m 59s
pre-commit / link-check	13s
mac / clang-build (Release)	2m 10s
mac / clang-build (Debug)	3m 12s
windows / clang-build	2m 35s
windows / msvc-build (Debug)	2m 56s
ubuntu / clang-build (ubuntu-24.04)	3m 33s
ubuntu / gcc-build (ubuntu-24.04, Debug)	2m 5s
ubuntu / gcc-build (ubuntu-24.04, Release)	2m 42s
windows / msvc-build (Release)	1m 59s
windows / clang-test	2m 14s
ubuntu / gcc-test (ubuntu-24.04)	2m 38s
windows / msvc-test	2m 20s
mac / clang-test	1m 24s
ubuntu / clang-test (ubuntu-24.04)	2m 50s
ubuntu / clang-sanitizer-build (ubuntu-24.04)	3m 30s
mac / clang-test-extended	1m 18s
windows / clang-test-extended	1m 16s
ubuntu / gcc-test-extended (ubuntu-24.04)	1m 56s
windows / msvc-test-extended	1m 35s
ubuntu / clang-test-extended (ubuntu-24.04)	1m 50s
ubuntu / clang-sanitizer-test (ubuntu-24.04)	1m 13s
ubuntu / gcc-build-codecov	3m 46s
ubuntu / clang-sanitizer-test-extended (ubuntu-24.04)	57s
perf / macos-clang-build-perf-stats	1m 37s
perf / ubuntu-gcc-build-perf-stats	1m 4s
pages / build-scoreboard	19s
pages / build-doxygen-xml	24s
pages / build-sphinx	49s
pages / deploy-pages	20s
	56m 48s

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