Add try catch block unregistering ConnectivityChangeReceiver

[lehcar09]

Add try catch block for possible race condition when unregistering the ConnectivityChangeReceiver

Issue: #6558

[github-actions]

Release note changes

No release note changes were detected. If you made changes that should be
present in the next release, ensure you've added an entry in the appropriate
CHANGELOG.md file(s).

[github-actions]

Vertex AI Mock Responses Check ⚠️

A newer major version of the mock responses for Vertex AI unit tests is available. update_responses.sh should be updated to clone the latest version of the responses: v5.2

[google-oss-bot]

	1 Warning
⚠️	Did you forget to add a changelog entry? (Add the 'no-changelog' label to the PR to silence this warning.)

Generated by 🚫 Danger

[google-oss-bot]

Size Report ¹

Affected Products

• firebase-messaging

  Type	Base (801bf4d)	Merge (c043ff2)	Diff
  aar	149 kB	149 kB	+47 B (+0.0%)
  apk (aggressive)	578 kB	578 kB	+16 B (+0.0%)
  apk (release)	5.30 MB	5.30 MB	+16 B (+0.0%)

Test Logs

• Base (801bf4d): https://github.com/firebase/firebase-android-sdk/actions/runs/12149695951
• Merge (c043ff2): https://github.com/firebase/firebase-android-sdk/actions/runs/12163218682

1. https://storage.googleapis.com/firebase-sdk-metric-reports/qmjNcTnexm.html

[google-oss-bot]

Coverage Report ¹

Affected Products

• firebase-messaging

  Overall coverage changed from 84.19% (801bf4d) to 84.13% (c043ff2) by -0.06%.

  Filename	Base (801bf4d)	Merge (c043ff2)	Diff
  SyncTask.java	70.83%	68.92%	-1.91%

Test Logs

• Base (801bf4d): https://github.com/firebase/firebase-android-sdk/actions/runs/12149695951
• Merge (c043ff2): https://github.com/firebase/firebase-android-sdk/actions/runs/12163218682

1. https://storage.googleapis.com/firebase-sdk-metric-reports/K9zVdXRDn0.html

[github-actions]

Test Results

 64 files   -    972   64 suites   - 972   6m 18s ⏱️ - 26m 26s
487 tests  -  5 386  487 ✅  -  5 364  0 💤  - 22  0 ❌ ±0 
980 runs   - 10 851  980 ✅  - 10 807  0 💤  - 44  0 ❌ ±0 

Results for commit 4e5bfc5. ± Comparison against base commit 801bf4d.

This pull request removes 5386 tests.

com.google.android.datatransport.cct.CctBackendFactoryTest ‑ create_returnCCTBackend_WhenBackendNameIsCCT
com.google.android.datatransport.cct.CctDestinationTest ‑ cctDestination_shouldOnlySupportProtoAndJson
com.google.android.datatransport.cct.CctDestinationTest ‑ cctDestination_shouldSupportProtoAndJson
com.google.android.datatransport.cct.CctTransportBackendTest ‑ decorate_whenOffline_shouldProperlyPopulateNetworkInfo
com.google.android.datatransport.cct.CctTransportBackendTest ‑ decorate_whenOnline_shouldProperlyPopulateNetworkInfo
com.google.android.datatransport.cct.CctTransportBackendTest ‑ schedule_shouldAddCookieOnPseudonymousIds
com.google.android.datatransport.cct.CctTransportBackendTest ‑ schedule_shouldDropCookieOnMixedPseudonymousIds
com.google.android.datatransport.cct.CctTransportBackendTest ‑ send_CompressedResponseIsUncompressed
com.google.android.datatransport.cct.CctTransportBackendTest ‑ send_whenBackendRedirectsMoreThan5Times_shouldOnlyRedirect4Times
com.google.android.datatransport.cct.CctTransportBackendTest ‑ send_whenBackendRedirects_shouldCorrectlyFollowTheRedirectViaPost
…

[rd7773]

@lehcar09 Can you get this fix merged? Facing similar issue on pixel devices right after installing an update.

[Heagin-OhJeongSeok]

@lehcar09 This issue is also occurring in the firebase SDK for Unity (firebase-messaging-unity:12.1.0). Could you please tell me when I can expect a fixed SDK?
This error tends to spike after each update of our game, then gradually decrease.
Thank you.