Next dev version

[0xnm]

What does this PR do?

This PR bumps dev version to 1.13.0 following https://github.com/DataDog/dd-sdk-android-gradle-plugin/pull/200

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 #201 (dc93070) into develop (7dec088) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff             @@
##             develop     #201   +/-   ##
==========================================
  Coverage      86.05%   86.05%           
  Complexity       181      181           
==========================================
  Files             21       21           
  Lines            588      588           
  Branches          78       78           
==========================================
  Hits             506      506           
  Misses            55       55           
  Partials          27       27           

Files	Coverage Δ
...m/datadog/gradle/plugin/internal/OkHttpUploader.kt	84.03% <ø> (ø)