Enable CodeQL analysis

[xgouchet]

What does this PR do?

Commit made on top of #1203 to fix compile issues
The custom detekt rules we have was using soon to be deprecated APIs in Kotlin, which made the build fail

Motivation

It is a part of Datadog compliance requirements to regularly perform code-scanning on all the customer installed code

[codecov-commenter]

Codecov Report

Merging #1204 (bb895f6) into develop (7da4be4) will decrease coverage by 0.03%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop    #1204      +/-   ##
===========================================
- Coverage    82.31%   82.28%   -0.03%     
===========================================
  Files          353      353              
  Lines        11795    11795              
  Branches      2007     2007              
===========================================
- Hits          9708     9705       -3     
+ Misses        1475     1474       -1     
- Partials       612      616       +4     

Impacted Files	Coverage Δ
...n/com/datadog/android/v2/core/SdkInternalLogger.kt	76.92% <0.00%> (-3.85%)	⬇️
...rsistence/file/batch/PlainBatchFileReaderWriter.kt	86.27% <0.00%> (-2.94%)	⬇️
...d/v2/core/internal/storage/FileEventBatchWriter.kt	95.24% <0.00%> (-2.38%)	⬇️
...core/internal/system/DefaultAndroidInfoProvider.kt	83.02% <0.00%> (-1.89%)	⬇️
...in/com/datadog/android/log/internal/LogsFeature.kt	87.10% <0.00%> (-1.61%)	⬇️
.../kotlin/com/datadog/android/v2/core/DatadogCore.kt	88.94% <0.00%> (-1.38%)	⬇️
...g/android/rum/internal/domain/scope/RumEventExt.kt	94.81% <0.00%> (-0.47%)	⬇️
...android/v2/core/internal/DatadogContextProvider.kt	81.54% <0.00%> (ø)
...rc/main/java/com/datadog/opentracing/DDTracer.java	56.49% <0.00%> (+0.42%)	⬆️
.../android/rum/internal/monitor/DatadogRumMonitor.kt	93.37% <0.00%> (+0.55%)	⬆️
... and 4 more