[QE] Set env var windows

[albfan]

Description

CI sets some configurations using env var, FOO=bar, but windows do not support that format, it should be $env:FOO=bar;

Fixes: #4618

[openshift-ci]

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[cfergeau]

Some of the test failures look related to these changes:

 cd tools && GOBIN="/go/src/github.com/crc-org/crc/tools/bin" go install github.com/golangci/golangci-lint/cmd/golangci-lint
"/go/src/github.com/crc-org/crc/tools/bin"/golangci-lint run
test/extended/util/util.go:34:4: S1023: redundant break statement (gosimple)
			break
			^
test/extended/util/util.go:37:4: S1023: redundant break statement (gosimple)
			break
			^ 

[praveenkumar]

/go/src/github.com/crc-org/crc/tools/bin"/golangci-lint run
test/extended/util/util.go:34:4: S1023: redundant break statement (gosimple)
			break
			^
test/extended/util/util.go:37:4: S1023: redundant break statement (gosimple)
			break 

linter is failing, make sure run make cross-lint after your changes to make sure it doesn't fail linting side.

[openshift-ci]

@albfan: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/security	82afc14	link	false	/test security

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