Merge remote-tracking branch 'upstream/main' #49

Job	Run time
check docs (ubuntu-latest / stable)	1m 8s
check format (ubuntu-latest / nightly)	11s
check feature flags (ubuntu-latest / stable)	8m 35s
check licenses (ubuntu-latest / stable)	24s
check examples (ubuntu-latest / stable)	1m 20s
check linter (ubuntu-latest / stable)	1m 30s
check minimal versions of transitive dependencies (ubuntu-latest / stable)	1m 25s
check minimal supported rust version (ubuntu-latest / msrv)	2m 44s
check spelling (ubuntu-latest / nightly)	3m 42s
test (ubuntu-latest / stable)	8m 28s
test (macos-latest / stable)	9m 42s
test (windows-latest / stable)	14m 20s
	53m 29s

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