Give artifact a unique version

Author: jcansdale

.github/workflows/main.yml

@@ -24,6 +24,9 @@ jobs:
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
+    - uses: aarnott/[email protected]
+      id: nbgv
+
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
     - uses: actions/checkout@v1
       with:
@@ -46,5 +49,5 @@ jobs:
     - name: Upload VSIX artifact
       uses: actions/upload-artifact@v1
       with:
-        name: vsix
+        name: GitHub.VisualStudio.${{ steps.nbgv.outputs.SemVer2 }}
         path: ${{ env.vsixContainer }}