upogrades from v3 to v4 the artefact

Author: animanoir

.github/workflows/build.yml

@@ -1,4 +1,3 @@
-# .github/workflows/build.yml
 name: Build Go Application
 
 on:
@@ -32,7 +31,7 @@ jobs:
         fi
 
     - name: Upload artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: ctrl2arena-${{ matrix.goos }}-${{ matrix.goarch }}
         path: |