Changing style of setting up github actions env due to the deprecation of the old way.

.github/workflows/ci.yml

@@ -15,9 +15,9 @@ jobs:
         go-version: 1.15
     - name: Install goimports
       run: go get golang.org/x/tools/cmd/goimports
+    - name: Set env with list of directories in repo containin go code
+      run: echo GO_USR_DIRS=$(go list -f {{.Dir}} ./... | grep -E -v "/gen-go/|/vendor/") >> $GITHUB_ENV
     - name: Run goimports check
       run: test -z `for d in $GO_USR_DIRS; do goimports -d "$d" | tee /dev/stderr; done`
-      env:
-        GO_USR_DIRS: $(go list -f {{.Dir}} ./... | grep -E -v "/gen-go/|/vendor/")
     - name: Run tests
       run: go build -o australis *.go