Lataa Keyguard 2.1.0

This update introduces initial support for creating new password credentials on Android via Android Credential framework.
[!NOTE]
A large part of the release is testing the updated new release pipeline that maintains the release log for Flathub. The updated pipeline should provide users with a list of versions and the changelog summary for each of them. The summary is auto-generated by an LLM from full changelog as a part of the release pipeline. I hope to extend it at some point to other stores that support displaying changelogs.
I've also turned on GitHub's immutable releases.
All changes
- 9bd9ef43 - chore: Remove extra whitespace from command preventing that from running
- 5a4c0455 - chore: Comply with actions/checkout requiring path to be under the predefined checkout dir
- cfe5ce46 - chore: Bump app version name to 2.1.0
- 4a852279 - feat(Android): Initial support for the Create password credential request #1191
- a2cb2fa2 - chore: Create an GitHub issue for publishing on Flathub for tracking
- 88c13054 - chore(Flatpak): Maintain the releases list automatically + generate release summary
- c87130fc - chore: Update Flathub listing accroding to the platform guidelines
- 0c7ea794 - Merge pull request #1188 from AChep/dependabot/github_actions/actions/upload-artifact-6
- 011f713c - build(deps): Bump actions/upload-artifact from 4 to 6
- 3aae1333 - docs(Readme): Remove AUR package instructions
- b2436d45 - docs(Readme): Resize Flathub badge image to match the others
- dcdd3700 - docs(Readme): Add a link to Flathub