Add bump homebrew tap workflow

Author: ShotaKashihara

.github/workflows/bump-formula.yml

@@ -0,0 +1,17 @@
+name: Bump Homebrew accs formula
+
+on:
+  push:
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+"
+
+jobs:
+  homebrew:
+    name: Bump Homebrew formula
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dawidd6/action-homebrew-bump-formula@v3.1.1
+        with:
+          token: ${{ secrets.TOKEN }}
+          tap: ShotaKashihara/homebrew-tap
+          formula: accs