Update dependencies on '6.1' in qt/qttools fails

agent:2021/06/11 06:32:21 build.go:391: FAILURE: Build failed with an exception.
agent:2021/06/11 06:32:21 build.go:391: * What went wrong:
agent:2021/06/11 06:32:21 build.go:391: Could not determine the dependencies of task ':compileDebugJavaWithJavac'.
agent:2021/06/11 06:32:21 build.go:391: > Installed Build Tools revision 28.0.3 is corrupted. Remove and install again using the SDK Manager.
agent:2021/06/11 06:32:21 build.go:391: * Try:
agent:2021/06/11 06:32:21 build.go:391: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
agent:2021/06/11 06:32:21 build.go:391: * Get more help at https://help.gradle.org
agent:2021/06/11 06:32:21 build.go:391: BUILD FAILED in 1m 3s
agent:2021/06/11 06:32:21 build.go:391: Building the android package failed!