Updated the vscode.yml to give vsix for -rc tags.

.github/workflows/vscode.yml

@@ -26,6 +26,8 @@ jobs:
           echo ::set-output name=ISPRODTAG::v?[0-9]+\.[0-9]+\.[0-9]+$
           if [[ ${{ github.ref }} =~ ^refs/tags/v?[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
           echo ::set-output name=GITHUB_TAG::true
+          elif [[ ${{ github.ref }} =~ ^refs/tags/v?[0-9]+\.[0-9]+\.[0-9]+-rc ]]; then
+          echo ::set-output name=GITHUB_TAG_RC::true
           fi
 
     - name: npm install
@@ -42,6 +44,13 @@ jobs:
       run: xvfb-run --auto-servernum --server-args="-screen 0, 1024x768x24" npm test --silent
     - name: docker test
       run: docker run -t --rm -v $PWD:/mnt:ro dkhamsing/awesome_bot --white-list "gitter.im/Microsoft/vscode-azure-iot-edge" --allow-dupe --allow-redirect --skip-save-results `ls *.md`
+    
+    - name: GitHub Release - RC
+      if: |
+           success() && (steps.check-tag.outputs.GITHUB_TAG_RC == 'true')
+      uses: softprops/action-gh-release@v1
+      with:
+          files: ./**/*.vsix 
 
     - name: GitHub Release
       if: |