Changes to fix Android emulators boot issues on Linux

[jsuarezruiz]

Description of Change

Changes to try to fix android emulators boot issues on Linux.

Sometimes, when trying to launch the Android emulator on Linux to run UITests we are getting the following error:

Executing: /usr/local/lib/android/sdk/platform-tools/adb shell getprop sys.boot_completed
adb: device unauthorized.
This adb server's $ADB_VENDOR_KEYS is not set
Try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.

This PR include changes to:

• Deletes existing adbkey and adbkey.pub files in the ~/.android directory to ensure no stale keys remain.
• Regenerates ADB keys using AdbKillServer and AdbStartServer.

[Copilot]

Copilot reviewed 1 out of 1 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (1)

eng/devices/android.cake:597

• Consider adding automated tests in TestCases.HostApp and TestCases.Shared.Tests to verify that the adb key regeneration process runs correctly in CI builds.

if (IsCIBuild())