Create a release PR in setup-cli repo on tag push (#827)

## Changes
Create a release PR in setup-cli repo on tag push

Author: andrewnester

.github/workflows/release.yml

@@ -29,3 +29,27 @@ jobs:
           args: release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  create-release-prs:
+    needs: goreleaser
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set VERSION variable from tag
+        run: |
+          VERSION=${{ github.ref_name }}
+          echo "VERSION=${VERSION:1}" >> $GITHUB_ENV
+
+      - name: Update setup-cli
+        uses: actions/github-script@v6
+        with:
+          github-token: ${{ secrets.DECO_GITHUB_TOKEN }}
+          script: |
+            await github.rest.actions.createWorkflowDispatch({
+              owner: 'databricks',
+              repo: 'setup-cli',
+              workflow_id: 'release-pr.yml',
+              ref: 'main',
+              inputs: {
+                version: "${{ env.VERSION }}",
+              }
+            });