Update Gradle version to 8.8

[0xnm]

What does this PR do?

This PR updates Gradle version to 8.8.

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 78.34%. Comparing base (cf789ce) to head (d74b74a).

Additional details and impacted files

@@                          Coverage Diff                           @@
##             nogorodnikov/update-agp-to-8.5.0     #277      +/-   ##
======================================================================
- Coverage                               78.38%   78.34%   -0.04%     
  Complexity                                254      254              
======================================================================
  Files                                      31       31              
  Lines                                     911      914       +3     
  Branches                                  114      114              
======================================================================
+ Hits                                      714      716       +2     
  Misses                                    147      147              
- Partials                                   50       51       +1     

see 2 files with indirect coverage changes