chore: remove jacoco and migrate to kover (ACOL-139)

[yamilmedina]

ACOL-139 Min. code coverage thresholds

---

PR Submission Checklist for internal contributors

• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like SQPIT-764
  • answers the question: If merged, this PR will: ... ³

• The PR Description

  • is free of optional paragraphs and you have filled the relevant parts to the best of your ability

---

What's new in this PR?

Issues

Follow up of #2662 to improve test coverage

Solutions

• Removes jacoco config.
• Use kover for better coverage support and filtering of classes and annotations.

Testing

Test Coverage (Optional)

• I have added automated test to this contribution

---

PR Post Submission Checklist for internal contributors (Optional)

• Wire's Github Workflow has automatically linked the PR to a JIRA issue

---

PR Post Merge Checklist for internal contributors

• If any soft of configuration variable was introduced by this PR, it has been added to the relevant documents and the CI jobs have been updated.

---

References

1. https://sparkbox.com/foundry/semantic_commit_messages
2. https://github.com/wireapp/.github#usage
3. E.g. feat(conversation-list): Sort conversations by most emojis in the title #SQPIT-764.

[yamilmedina]

Dead code, not used, since coverage runs on gh actions.

[github-actions]

APKs built during tests are available here. Scroll down to Artifacts!

[AndroidBob]

Build 2947 succeeded.

The build produced the following APK's:

• com.wire.android-v4.6.0(8834869)(8834869)-staging-compat.apk