build: bump npm v22

Author: peterpeterparker

.github/actions/prepare/action.yml

@@ -7,11 +7,8 @@ runs:
   steps:
     - uses: actions/setup-node@v4
       with:
-        node-version: 20
+        node-version: 22
         registry-url: 'https://registry.npmjs.org'
-    - name: Install latest npm
-      shell: bash
-      run: npm install -g npm@latest
     - name: Install dependencies
       shell: bash
       run: npm ci