Bump codecov/codecov-action from 5.5.3 to 6.0.0 #4711

Job	Run time
pre-commit / link-check	17s
pre-commit / pre-commit	2m 7s
mac / clang-build (Debug)	2m 55s
mac / clang-build (Release)	1m 53s
windows / clang-build	4m 32s
ubuntu / clang-build (ubuntu-24.04)	3m 2s
windows / msvc-build (Release)	1m 55s
ubuntu / gcc-build (ubuntu-24.04, Debug)	2m 1s
ubuntu / gcc-build (ubuntu-24.04, Release)	2m 25s
windows / msvc-build (Debug)	3m 50s
ubuntu / gcc-test (ubuntu-24.04)	8m 29s
ubuntu / clang-test (ubuntu-24.04)	8m 25s
ubuntu / clang-sanitizer-build (ubuntu-24.04)	3m 40s
windows / msvc-test	5m 49s
windows / clang-test	2m 49s
mac / clang-test	4m 16s
ubuntu / gcc-test-extended (ubuntu-24.04)	4m 46s
windows / clang-test-extended	3m 20s
ubuntu / clang-sanitizer-test (ubuntu-24.04)	2m 55s
ubuntu / clang-test-extended (ubuntu-24.04)	4m 36s
windows / msvc-test-extended	3m 15s
mac / clang-test-extended	3m 1s
ubuntu / clang-sanitizer-test-extended (ubuntu-24.04)	2m 39s
ubuntu / gcc-build-codecov	7m 42s
perf / ubuntu-gcc-build-perf-stats	1m 48s
perf / macos-clang-build-perf-stats	1m 38s
pages / build-doxygen-xml	18s
pages / build-scoreboard	16s
pages / build-sphinx	39s
pages / deploy-pages	0s
	1h 35m 18s

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