Do not use magic numbers in InternalLogger API

[mariusc83]

What does this PR do?

A brief description of the change being made with this pull request.

Motivation

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Additional Notes

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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

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 70.02%. Comparing base (529e791) to head (8038b2f).
Report is 6 commits behind head on develop.

Files with missing lines	Patch %	Lines
...n/kotlin/com/datadog/android/api/InternalLogger.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2271      +/-   ##
===========================================
+ Coverage    69.98%   70.02%   +0.04%     
===========================================
  Files          731      731              
  Lines        27204    27211       +7     
  Branches      4574     4577       +3     
===========================================
+ Hits         19037    19053      +16     
+ Misses        6896     6874      -22     
- Partials      1271     1284      +13     

Files with missing lines	Coverage Δ
...n/kotlin/com/datadog/android/api/InternalLogger.kt	93.75% <0.00%> (ø)

... and 31 files with indirect coverage changes