updating linux and macos gh actions to use upload-artifact@v4

.github/workflows/linux_build.yaml

@@ -70,7 +70,7 @@ jobs:
       run: ls -R ./build || echo "build directory not found"
 
     - name: Upload artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: linux-build
         path: ./build/

.github/workflows/macos_build.yaml

@@ -59,7 +59,7 @@ jobs:
       run: ls -R ./build || echo "build directory not found"
 
     - name: Upload artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: macos-build
         path: ./build/