Tooling update

[0xnm]

What does this PR do?

This PR updates tooling used in this repo:

• Kotlin to 1.9.23
• OkHttp to 4.12.0
• Gradle to 8.6
• Dokka to 1.9.20
• Latest version of Android cmdline tools

Also the latest configuration integration tests are run for is updated.

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

Merging #227 (b322aa8) into develop (03d071c) will increase coverage by 0.13%. Report is 5 commits behind head on develop. The diff coverage is n/a.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #227 +/- ## ============================================= + Coverage 81.27% 81.39% +0.13% - Complexity 202 203 +1 ============================================= Files 26 26 Lines 790 790 Branches 104 104 ============================================= + Hits 642 643 +1 Misses 111 111 + Partials 37 36 -1 ``` [see 1 file with indirect coverage changes](https://app.codecov.io/gh/DataDog/dd-sdk-android-gradle-plugin/pull/227/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=DataDog)