[Bazel] [intellij] Always clear app data before running instrumentation tests through adb

[ThomasCJY]

Checklist

• [x] I have filed an issue about this change and discussed potential changes with the maintainers.
• [ ] I have received the approval from the maintainers to make this change.
• [x] This is not a stylistic, refactoring, or cleanup change.

Please note that the maintainers will not be reviewing this change until all checkboxes are ticked. See the Contributions section in the README for more details.

Discussion thread for this change

Issue number: https://github.com/bazelbuild/intellij/issues/2540

Description of this change

Some of our devs reporting that clearing app data before running instrumentation tests could reduce flakiness. This pr adds the adb pm clear step before running the instrumentation tests

[sgowroji]

Hello @ThomasCJY, Could you please resolve the above code conflicts and fix the buildkite failures. We can share the above PR for further review. Thanks!

[keertk]

Hi there! Thank you for contributing to the IntelliJ repository. We appreciate your time and effort. We're doing a clean up of old PRs and will be closing this one since it seems to have stalled. Please feel free to reopen/let us know if you’re still interested in pursuing this or if you'd like to discuss anything further. We’ll respond as soon as we have the bandwidth/resources to do so.