update workflow step versions

Author: burturt

.github/workflows/build.yml

@@ -13,10 +13,10 @@ jobs:
 
     steps:
       - name: Checkout Git repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v5
 
       - name: Cache node_modules
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: "**/node_modules"
           key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}