update homebrew tap on release (#64)

Author: lkurcak

.github/workflows/release.yml

@@ -46,12 +46,29 @@ jobs:
     permissions:
       id-token: write     # Required for OIDC token exchange
     steps:
-    - uses: actions/checkout@v5
-    - uses: rust-lang/crates-io-auth-action@v1
-      id: auth
-    - run: cargo publish
-      env:
-        CARGO_REGISTRY_TOKEN: ${{ steps.auth.outputs.token }}
+      - uses: actions/checkout@v5
+      - uses: rust-lang/crates-io-auth-action@v1
+        id: auth
+      - run: cargo publish
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ steps.auth.outputs.token }}
+
+  update-homebrew:
+    name: update-homebrew
+    needs:
+      - create-release
+    runs-on: macos-latest
+    steps:
+      - name: Update Homebrew formula
+        env:
+          HOMEBREW_GITHUB_API_TOKEN: ${{ secrets.TAP_GITHUB_TOKEN }}
+        run: |
+          version="${{ needs.create-release.outputs.version }}"
+          brew tap lkurcak/tap
+          brew bump-formula-pr \
+            --no-browse \
+            --version="$version" \
+            lkurcak/tap/tend
 
   build-release:
     name: build-release