Error 429 "Too Many Requests" is now handled

[rapterjet2004]

• fixes handle '429 Too Many Requests' for phonebook sync #3340

🏁 Checklist

• ⛑️ Tests (unit and/or integration) are included or not needed
• 🔖 Capability is checked or not needed
• 🔙 Backport requests are created or not needed: /backport to stable-xx.x
• 📅 Milestone is set
• 🌸 PR title is meaningful (if it should be in the changelog: is it meaningful to users?)

[mahibi]

ncApi.setUserData is not the method that needs the 'Too many requests' handling but
ncApi.searchContactsByPhoneNumber in ContactAddressBookWorker.

[mahibi]

fine for me to use a toast here as we have no view.
just an edge case here which might never(?) be triggered..
otherwise we prefer snackbar

[github-actions]

Codacy

Lint

Type	master	PR
Warnings	91	91
Errors	0	0

SpotBugs

Category	Base	New
Correctness	9	9
Dodgy code	123	123
Internationalization	5	5
Malicious code vulnerability	3	3
Performance	8	8
Security	2	2
Total	150	150

[github-actions]

APK file: https://www.kaminsky.me/nc-dev/android-artifacts/3342-talk.apk



To test this change/fix you can simply download above APK file and install and test it in parallel to your existing Nextcloud Talk app.

[github-actions]

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