fix: revert launch mode to singleTask (WPB-9014) 🍒

[github-actions]

WPB-9014 [Android] A second instance of the app to be started when clicking on a deep link

This PR was automatically cherry-picked based on the following PR:

• fix: revert launch mode to singleTask (WPB-9014) #2975

Original PR description:

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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

A second instance of the app to be started when clicking on a deep link

Solutions

Change launch mode to single instance for WireActivity

Needs releases with:

• GitHub link to other pull request

Testing

Test Coverage (Optional)

• I have added automated test to this contribution

How to Test

Briefly describe how this change was tested and if applicable the exact steps taken to verify that it works as expected.

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.

[AndroidBob]

Build 4631 succeeded.

The build produced the following APK's:

• com.wire.android-v4.8.0(9603940)(9603940)-staging-compat.apk

[github-actions]

Test Results

927 tests  ±0   927 ✅ ±0   16m 52s ⏱️ + 8m 54s
123 suites ±0     0 💤 ±0 
123 files   ±0     0 ❌ ±0 

Results for commit 9ec5860. ± Comparison against base commit bf5d34e.

[github-actions]

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

[AndroidBob]

Build 4645 succeeded.

The build produced the following APK's:

• com.wire.android-v4.8.0(9610439)(9610439)-staging-compat.apk