Update deprecated github actions.

Author: Archie3d

.github/workflows/build.yml

@@ -58,7 +58,7 @@ jobs:
       run: choco install ninja
 
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         submodules: recursive
 
@@ -90,7 +90,7 @@ jobs:
         cd ${{ matrix.path }}
         find "$(pwd)"
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: aeolus-${{ matrix.name }}
         path: |