Bump copy-webpack-plugin to fix upstream security issue in serialize-javascript

Author: tvdijen

.github/workflows/build-release.yml

@@ -70,7 +70,7 @@ jobs:
     steps:
       - uses: actions/setup-node@v6
         with:
-          node-version: 18
+          node-version: 20
 
       - uses: actions/download-artifact@v8
         with:

.github/workflows/update-dependencies.yml

@@ -25,7 +25,7 @@ jobs:
         run: git fetch --all
       - uses: actions/setup-node@v6
         with:
-          node-version: 18
+          node-version: 20
 
       - name: Install & build assets
         run: |