attempt to update minify action

.github/workflows/minifycss.yml

@@ -1,20 +1,16 @@
 name: Minify CSS
-on: push
+on:
+  push:
+    branches:
+      - main
 jobs:
   minify:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
         with:
-          token: ${{ secrets.BOLT_BOT }}
+          node-version: "20"
+      - run: npm install -g cssnano
 
-      - name: Auto Minify
-        uses: nizarmah/[email protected]
-
-      # Auto commits minified files to the repository
-      # Ignore it if you don't want to commit the files to the repository
-      - name: Auto committing minified files
-        uses: stefanzweifel/git-auto-commit-action@v4
-        with:
-          commit_message: "minify css files"
-          branch: ${{ github.ref }}
+      - run: cssnano bolt.css -o bolt.min.css