Update QEMU and Buildx steps to latest version in workflow and docume… #105

Job	Run time
Build, test, publish / build, test, package	4m 50s
Build, test, publish / Run GitHub env-vars-on-post-create test	2m 4s
Build, test, publish / Run AzDO test	8m 11s
Build, test, publish / Run test with config file	48s
Build, test, publish / Run GitHub docker-compose with features test	1m 30s
Build, test, publish / Run GitHub build-args test	1m 53s
Build, test, publish / Run GitHub dockerfile-context test	2m 24s
Build, test, publish / Run GitHub docker-from-docker-non-root test	2m 32s
Build, test, publish / Run GitHub docker-from-docker-root test	2m 27s
Build, test, publish / Run GitHub feature-docker-from-docker test	2m 51s
Build, test, publish / Run GitHub run-args test	2m 22s
Build, test, publish / Run GitHub skipContainerUserIdUpdate test	2m 1s
Build, test, publish / test-github-output	1m 30s
Build, test, publish / Test multiple tags job 1	4m 19s
Build, test, publish / Run test without runCmd	45s
Build, test, publish / Run GitHub platform and runCmd test	3m 30s
Build, test, publish / Run simple test	59s
Build, test, publish / Test multiple tags job 2	3s
Build, test, publish / All succeeded	1s
Build, test, publish / Create release	3m 53s
Build, test, publish / Mark PR checks as complete	0s
	48m 53s

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