ci(artifacts): update node version and upload artifact version

Author: zekroTJA

.github/workflows/artifacts.yaml

@@ -14,7 +14,7 @@ jobs:
     steps:
       - uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 21
       - name: Check out code into the Go module directory
         uses: actions/checkout@v3
       - name: Install vsce
@@ -29,7 +29,7 @@ jobs:
         id: get_version
         run: echo "VERSION=$(cat package.json | jq -r .version)" >> $GITHUB_ENV
       - name: Upload Artifcats
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: goatfile-${{ env.VERSION }}.vsix
           path: ./goatfile-${{ env.VERSION }}.vsix