fix: start CallActivity in a new task (WPB-6437) (#2952) - cherrypick

[ohassine]

WPB-6437 Move calling UIs to be displayed on a separate activity

(cherry picked from commit 6142d0a9adb44cb4b945b87d3dda8d422bf687a0)

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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

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What's new in this PR?

Issues

Cherrypick of https://github.com/wireapp/wire-android/pull/2952

Needs releases with:

• [ ] GitHub link to other pull request

Testing

Test Coverage (Optional)

• [ ] I have added automated test to this contribution

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Notes (Optional)

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PR Post Submission Checklist for internal contributors (Optional)

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

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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.

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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.

[github-actions[bot]]

Test Results

924 tests   924 :white_check_mark:  16m 8s :stopwatch: 123 suites    0 :zzz: 123 files      0 :x:

Results for commit b1474ccf.

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

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

[github-actions[bot]]

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

[AndroidBob]

Build 4566 succeeded.

The build produced the following APK's:

• com.wire.android-v4.7.0(9569958)(9569958)-staging-compat.apk