Fix release tag in CI workflow

Author: saibotk

.github/workflows/release.yml

@@ -24,7 +24,7 @@ jobs:
       uses: actions/upload-artifact@v2.2.0
       with:
         # Artifact name
-        name: NeoDoc-$RELEASE_VERSION
+        name: NeoDoc-${{ env.RELEASE_VERSION }}
         # A file, directory or wildcard pattern that describes what to upload
         path: bin/Release/*
         retention-days: 90
@@ -40,9 +40,9 @@ jobs:
         # Build's context is the set of files located in the specified PATH or URL
         context: .
         # List of tags
-        tags: docker.pkg.github.com/ttt-2/neodoc/neodoc:$RELEASE_VERSION
+        tags: docker.pkg.github.com/ttt-2/neodoc/neodoc:${{ env.RELEASE_VERSION }}
         # Always attempt to pull a newer version of the image
         pull: true
         load: true
     - name: Push docker image
-      run: docker push docker.pkg.github.com/ttt-2/neodoc/neodoc:$RELEASE_VERSION
+      run: docker push docker.pkg.github.com/ttt-2/neodoc/neodoc:${{ env.RELEASE_VERSION }}