Update ant.yml

Author: vanvught

.github/workflows/ant.yml

@@ -22,4 +22,4 @@ jobs:
         java-version: '11'
         distribution: 'temurin'
     - name: Build with Ant
-      run: ant -noinput -buildfile build.xml
+      run: ant -noinput -buildfile FirmwareUpdateUI/workspace.xml