Update NPM release workflow

.github/workflows/release-npm.yml

@@ -89,8 +89,11 @@ jobs:
           persist-credentials: false
           ref: ${{ inputs.grafana_commit }}
 
-      - name: Setup Node
-        uses: ./.github/actions/setup-node
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: '.nvmrc'
+          cache: 'yarn'
+          cache-dependency-path: 'yarn.lock'
 
       # Trusted Publishing is only available in npm v11.5.1 and later
       - name: Update npm
@@ -118,9 +121,6 @@ jobs:
       - name: Debug packed files
         run: tree -a ./npm-artifacts
 
-      - name: Validate packages
-        run: ./scripts/validate-npm-packages.sh
-
       - name: Debug OIDC Claims
         uses: github/actions-oidc-debugger@2e9ba5d3f4bebaad1f91a2cede055115738b7ae8
         with:
@@ -144,4 +144,3 @@ jobs:
           persist-credentials: false
 
       # TODO: tag the given release with nightly
-