👷 Update CI system actions

Author: richardfrost

.github/workflows/codeberg-mirror.yml

@@ -11,7 +11,7 @@ jobs:
   codeberg:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: pixta-dev/repository-mirroring-action@v1

.github/workflows/node.js.yml

@@ -11,11 +11,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['18.x', 'latest']
+        node-version: ['latest']
     steps:
       - uses: actions/checkout@v4
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
       - name: Install dependencies