Add a way to manually trigger the Github CI

[bilal-alsharifi]

This PR is [ready] for review.

Risk

This PR makes no API changes.

Testing Plan

• I have verified that I have not introduced new warnings in this PR (or explain why below)
• I have run the unit tests with this PR

Summary

This PR:

• Adds the new workflow_dispatch event to allow manually triggering a CI run
• Fix testTouchEvents() test that fails sometimes randomly when the tests are run by the CI

CLA

• I have signed the CLA

[codecov]

Codecov Report

Merging #1711 (3a1671b) into release/5.2.0_RC (6c55685) will increase coverage by 0.00%.
The diff coverage is n/a.

❗ Current head 3a1671b differs from pull request most recent head 7fbb51e. Consider uploading reports for the commit 7fbb51e to get more accurate results

@@                 Coverage Diff                 @@
##             release/5.2.0_RC    #1711   +/-   ##
===================================================
  Coverage               54.44%   54.45%           
- Complexity               5406     5407    +1     
===================================================
  Files                     555      555           
  Lines                   24746    24746           
  Branches                 3156     3156           
===================================================
+ Hits                    13474    13476    +2     
+ Misses                  10096    10095    -1     
+ Partials                 1176     1175    -1     

Impacted Files	Coverage Δ
...nk/managers/audio/AudioDecoderCompatOperation.java	79.54% <0.00%> (+4.54%)	⬆️

[JulianKast]

Approved