Update NPM and install auditfix

Author: MaartendeKruijf

.github/workflows/hugo.yaml

@@ -67,12 +67,16 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: '20.x'
+      - name: Update npm
+        run: npm install -g npm@10.5.0
       - name: Install postcss via NPM
         run:  npm install -g postcss-cli
       - name: Install postcss and autoprefixer via NPM
         run: npm install -g postcss
       - name: Install autoprefixer via NPM
         run: npm install -g autoprefixer    
+      - name: NPM audit fix
+        run: npm audit fix
       - name: Checkout
         uses: actions/checkout@v4
         with: