[internal] ensure sdk tag for go sdk pushed as part of release (#73)

Author: stack72

.github/workflows/release.yml

@@ -356,3 +356,17 @@ jobs:
           author_name: Failure in running ${{ matrix.language }} tests
           fields: repo,commit,author,action
           status: ${{ job.status }}
+  tag_sdk:
+    name: tag_sdk
+    needs: publish_sdk
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@v2
+      - name: Install pulumictl
+        uses: jaxxstorm/[email protected]
+        with:
+          repo: pulumi/pulumictl
+      - name: Add SDK version tag
+        run: git tag sdk/v$(pulumictl get version --language generic) && git push origin
+          sdk/v$(pulumictl get version --language generic)