Update version of actions

Author: pricejc-sublime

.github/workflows/build-ext.yml

@@ -7,10 +7,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Use Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
           node-version: "16.x"
 
@@ -27,7 +27,7 @@ jobs:
         run: npx vsce package
 
       - name: Upload VSIX
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: VSIX package
           path: ./*.vsix