Removes requirement of specific environment variables during testing #408

Job	Run time
spell check with typos	4s
docs-pr	5s
build-on-linux (linux-kvm-debug)	1m 15s
build-on-windows (windows-debug)	37s
build-on-linux (linux-kvm-release)	1m 12s
build-on-windows (windows-release)	38s
build-on-linux (linux-hyperv-debug)	1m 12s
build-on-linux (linux-hyperv-release)	1m 21s
fuzzing / fuzz	9m 46s
rust / build (hyperv, amd, debug)	16m 58s
rust / build (hyperv, amd, release)	23m 6s
rust / build (hyperv, intel, debug)	16m 50s
rust / build (hyperv, intel, release)	22m 0s
rust / build (mshv, amd, debug)	11m 8s
rust / build (mshv, amd, release)	14m 51s
rust / build (mshv, intel, debug)	10m 40s
rust / build (mshv, intel, release)	14m 5s
rust / build (kvm, amd, debug)	12m 57s
rust / build (kvm, amd, release)	15m 49s
rust / build (kvm, intel, debug)	10m 27s
rust / build (kvm, intel, release)	14m 21s
	3h 19m 22s

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