chore: update setup-node action to enable pnpm

- Removed the pnpm installation step and replaced it with a setup command using corepack.
- Ensured Node.js version 20.12.0 is still configured with pnpm caching for dependency management.

.github/actions/setup-node/action.yml

@@ -3,17 +3,15 @@ description: "Install pnpm and setup Node.js with pnpm cache (fixed versions)"
 runs:
   using: "composite"
   steps:
-    - name: Install pnpm
-      uses: pnpm/action-setup@fe02b34f77f8bc703788d5817da081398fad5dd2 # v4.0.0
-      with:
-        version: 10.8.1
-
     - name: Setup Node.js 20.12.0
       uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65 # v4.0.0
       with:
         node-version: 20.12.0
-        cache: pnpm
+
+    - name: Setup pnpm
+      shell: bash
+      run: npm install -g pnpm
 
     - name: Install Dependencies
       shell: bash
-      run: pnpm install --frozen-lockfile --ignore-scripts
+      run: pnpm i --frozen-lockfile --ignore-scripts

.npmrc

@@ -0,0 +1,2 @@
+engine-strict=true
+manage-package-manager-versions=true