Update pastefy to version 7.1.6

[al-lac]

🤖 This is an automated pull request to update pastefy to version 7.1.6. This PR must be reviewed and tested before merging.

Auto-generated update considerations:

• No release notes are available for versions 7.1.5 and 7.1.6, so potential breaking changes, database migrations, environment variable changes, or configuration steps cannot be assessed; manual review of changelogs or upstream documentation is recommended before upgrading.

Original GitHub release notes

[al-lac]

🤖 This is an automated summary of installation tests for pastefy:

• ✅ App successfully installed in umbrel-dev instance
• ✅ App successfully listed in umbrel.yaml
• ✅ App UI successfully returns a 200 status code
• 📸 Screenshot of the app:
  

This PR must still be reviewed and tested before merging.

[github-actions]

🎉   Linting finished with no errors or warnings   🎉

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[al-lac]

Tested update on Umbrel dev instance.