update github actions

.github/actions/setup/action.yml

@@ -2,17 +2,13 @@ name: Setup
 runs:
   using: composite
   steps:
-    - uses: actions/setup-node@v4
-      with:
-        node-version-file: '.nvmrc'
-        registry-url: https://registry.npmjs.org
-        cache: yarn
-
-    # For provenance https://docs.npmjs.com/generating-provenance-statements#prerequisites
-    - name: Install npm 9.5
-      run: npm install -g npm@^9.5.0
+    - name: Setup Bun
+      run: |
+        curl -fsSL https://bun.sh/install | bash
+        echo 'export BUN_INSTALL="$HOME/.bun"' >> $GITHUB_ENV
+        echo 'export PATH="$BUN_INSTALL/bin:$PATH"' >> $GITHUB_ENV
       shell: bash
 
-    - name: Install node modules
-      run: yarn install --frozen-lockfile
+    - name: Install Bun Dependencies
+      run: bun install
       shell: bash