RUM-3389 Add the Otel API feature integration tests

[mariusc83]

What does this PR do?

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

Motivation

What inspired you to submit this pull request?

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

Merging #1995 (76ae6a7) into feature/otel-support (37e2e35) will increase coverage by 0.12%. Report is 2 commits behind head on feature/otel-support. The diff coverage is 86.11%.

:exclamation: Current head 76ae6a7 differs from pull request most recent head 989c4e0. Consider uploading reports for the commit 989c4e0 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## feature/otel-support #1995 +/- ## ======================================================== + Coverage 60.26% 60.38% +0.12% ======================================================== Files 808 808 Lines 30184 30224 +40 Branches 4945 4951 +6 ======================================================== + Hits 18188 18248 +60 + Misses 10772 10760 -12 + Partials 1224 1216 -8 ``` | [Files](https://app.codecov.io/gh/DataDog/dd-sdk-android/pull/1995?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=DataDog) | Coverage Δ | | |---|---|---| | [...dog/android/trace/internal/data/OtelTraceWriter.kt](https://app.codecov.io/gh/DataDog/dd-sdk-android/pull/1995?src=pr&el=tree&filepath=features%2Fdd-sdk-android-trace%2Fsrc%2Fmain%2Fkotlin%2Fcom%2Fdatadog%2Fandroid%2Ftrace%2Finternal%2Fdata%2FOtelTraceWriter.kt&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=DataDog#diff-ZmVhdHVyZXMvZGQtc2RrLWFuZHJvaWQtdHJhY2Uvc3JjL21haW4va290bGluL2NvbS9kYXRhZG9nL2FuZHJvaWQvdHJhY2UvaW50ZXJuYWwvZGF0YS9PdGVsVHJhY2VXcml0ZXIua3Q=) | `88.89% <ø> (+3.70%)` | :arrow_up: | | [...e/src/main/java/com/datadog/trace/core/DDSpan.java](https://app.codecov.io/gh/DataDog/dd-sdk-android/pull/1995?src=pr&el=tree&filepath=features%2Fdd-sdk-android-trace%2Fsrc%2Fmain%2Fjava%2Fcom%2Fdatadog%2Ftrace%2Fcore%2FDDSpan.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=DataDog#diff-ZmVhdHVyZXMvZGQtc2RrLWFuZHJvaWQtdHJhY2Uvc3JjL21haW4vamF2YS9jb20vZGF0YWRvZy90cmFjZS9jb3JlL0REU3Bhbi5qYXZh) | `55.98% <0.00%> (-0.24%)` | :arrow_down: | | [...ternal/domain/event/OtelDdSpanToSpanEventMapper.kt](https://app.codecov.io/gh/DataDog/dd-sdk-android/pull/1995?src=pr&el=tree&filepath=features%2Fdd-sdk-android-trace%2Fsrc%2Fmain%2Fkotlin%2Fcom%2Fdatadog%2Fandroid%2Ftrace%2Finternal%2Fdomain%2Fevent%2FOtelDdSpanToSpanEventMapper.kt&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=DataDog#diff-ZmVhdHVyZXMvZGQtc2RrLWFuZHJvaWQtdHJhY2Uvc3JjL21haW4va290bGluL2NvbS9kYXRhZG9nL2FuZHJvaWQvdHJhY2UvaW50ZXJuYWwvZG9tYWluL2V2ZW50L090ZWxEZFNwYW5Ub1NwYW5FdmVudE1hcHBlci5rdA==) | `88.42% <88.57%> (+2.06%)` | :arrow_up: | ... and [29 files with indirect coverage changes](https://app.codecov.io/gh/DataDog/dd-sdk-android/pull/1995/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=DataDog)