RUM-4358: Log warning about tag modification only once

[0xnm]

What does this PR do?

This PR addresses issue #1018: with SDK v2 functionality we can now log a particular message only once. This is useful to avoid logcat spamming.

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 83.60%. Comparing base (2adb85c) to head (be760da).

Additional details and impacted files

@@                Coverage Diff                @@
##           release/2.9.0    #2017      +/-   ##
=================================================
- Coverage          83.92%   83.60%   -0.32%     
=================================================
  Files                488      488              
  Lines              17781    17754      -27     
  Branches            2667     2665       -2     
=================================================
- Hits               14922    14842      -80     
- Misses              2154     2190      +36     
- Partials             705      722      +17     

Files	Coverage Δ
...android/core/constraints/DatadogDataConstraints.kt	91.84% <100.00%> (+0.08%)	⬆️

... and 24 files with indirect coverage changes