ci: build fdroid for regression testing [WPB-10367] 🍒

[github-actions]

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

• ci: build fdroid for regression testing [WPB-10367] #3238

Original PR description:

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WPB-10367 [Android] build fdroid on gh action for regression testing

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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

after migrating CI to gh action we are missing a way to build fdroid app for regression testing

Solutions

add a gh action to build fdroid and upload to s3 so megazord can find the latest one

Dependencies (Optional)

If there are some other pull requests related to this one (e.g. new releases of frameworks), specify them here.

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)

Specify here any other facts that you think are important for this issue.

Attachments (Optional)

Attachments like images, videos, etc. (drag and drop in the text box)

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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.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud