fix workflow w/ ubuntu updates

Author: Phantop

.github/workflows/build.yml

@@ -30,7 +30,9 @@ jobs:
       - name: Checkout repo
         uses: actions/checkout@v4
       - name: Install packaging dependencies
-        run: sudo apt install -y aria2 libarchive-tools
+        run: |
+          sudo apt update -y
+          sudo apt install -y aria2 libarchive-tools
       - name: Setup DwarFS
         run: |
           sudo cp appdwarf /bin