Update enums to match RUM event schema

[xgouchet]

What does this PR do?

Update the enums we use in our API to match some constants available in the RUM schema

Motivation

Ensure a better consistency across platforms.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 96.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 70.04%. Comparing base (3adfe60) to head (00b9ef7).
Report is 37 commits behind head on develop.

Files with missing lines	Patch %	Lines
...trace/internal/domain/event/BaseSpanEventMapper.kt	66.67%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2482      +/-   ##
===========================================
+ Coverage    69.92%   70.04%   +0.12%     
===========================================
  Files          786      786              
  Lines        29301    29406     +105     
  Branches      4889     4902      +13     
===========================================
+ Hits         20486    20596     +110     
- Misses        7442     7455      +13     
+ Partials      1373     1355      -18     

Files with missing lines	Coverage Δ
...tlin/com/datadog/android/api/context/DeviceType.kt	100.00% <100.00%> (ø)
...n/kotlin/com/datadog/android/rum/RumErrorSource.kt	100.00% <100.00%> (ø)
...g/android/rum/internal/domain/scope/RumEventExt.kt	93.77% <100.00%> (+0.26%)	⬆️
...trace/internal/domain/event/BaseSpanEventMapper.kt	94.59% <66.67%> (+11.74%)	⬆️

... and 40 files with indirect coverage changes