ci(dispatch.yml): dispatch to fermyon/homebrew-tap

Signed-off-by: Vaughn Dice <[email protected]>

.github/workflows/release.yml

@@ -358,3 +358,17 @@ jobs:
         with:
           name: spin
           path: _dist/spin-${{ env.RELEASE_VERSION }}-static-${{ env.RUNNER_OS }}-${{ matrix.config.arch }}.tar.gz
+
+  dispatch-homebrew-tap:
+    name: Dispatch spin-release event to fermyon/homebrew-tap
+    needs: create-gh-release
+    runs-on: ubuntu-latest
+    if: ${{ github.repository_owner == 'fermyon' }} && ${{ startsWith(github.ref, 'refs/tags/v') }}
+    steps:
+      - name: Repository Dispatch
+        uses: peter-evans/repository-dispatch@v3
+        with:
+          token: ${{ secrets.DEST_REPO_ACCESS_TOKEN }}
+          repository: fermyon/homebrew-tap
+          event-type: spin-release
+          client-payload: '{"version": "${{ github.ref_name }}"}'