Update GitHub Actions workflow to use latest version of upload-artifact action

Author: Mteheran

.github/workflows/main_apicolombia.yml

@@ -37,7 +37,7 @@ jobs:
         working-directory: ./api.Tests
 
       - name: Publish test results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: always()
         with:
           name: test-results