Update kotlinx.ast dependency

[0xnm]

What does this PR do?

Old version cannot be found on JitPack, causing the build failure.

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.97%. Comparing base (fd7786e) to head (eaf739e).
Report is 3 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2231      +/-   ##
===========================================
- Coverage    69.97%   69.97%   -0.01%     
===========================================
  Files          727      727              
  Lines        27016    27044      +28     
  Branches      4555     4557       +2     
===========================================
+ Hits         18904    18922      +18     
- Misses        6830     6841      +11     
+ Partials      1282     1281       -1     

see 31 files with indirect coverage changes