Do not report parsing ANR error when there are no threads

[romtsn]

📜 Description

Previously we would be sending a message that parsing the ANRs dump was unsuccessful, but now we only do it for the case when there's an actual error in parsing - if there are simply no matching entries in a thread dump and the returned thread list is empty, we just don't do anything. Seems like Google Play and Firebase also ignore these kind of ANRs.

💚 How did you test it?

Automated

📝 Checklist

• I reviewed the submitted code.
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	445.74 ms	526.10 ms	80.37 ms
Size	1.70 MiB	2.35 MiB	668.77 KiB