Update versions for Release 10.27.0

[andrewheard]

Firebase 10.27.0 pods staged in SpecsStaging.

Note: Intentionally skipped from 10.25.0 to 10.27.0 since 10.26.0 will be an SPM-only release; see #12873 for context.

#no-changelog

[google-oss-bot]

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

Generated by 🚫 Danger

[google-oss-bot]

Coverage Report ¹

Affected Products

• FirebaseDatabase-iOS-FirebaseDatabase.framework

  Overall coverage changed from 56.76% (912df58) to 56.84% (9cf0807) by +0.08%.

  Filename	Base (912df58)	Merge (9cf0807)	Diff
  FIRRetryHelper.m	83.33%	88.10%	+4.76%
  FWebSocketConnection.m	37.19%	41.74%	+4.55%

• FirebaseFirestore-iOS-FirebaseFirestoreInternal.framework

  Overall coverage changed from 88.21% (912df58) to 88.11% (9cf0807) by -0.10%.

  Filename	Base (912df58)	Merge (9cf0807)	Diff
  exception.cc	84.21%	23.68%	-60.53%
  ordered_code.cc	94.39%	93.90%	-0.49%

• FirebaseMessaging-iOS-FirebaseMessaging.framework

  Overall coverage changed from 60.12% (912df58) to 57.90% (9cf0807) by -2.22%.

  Filename	Base (912df58)	Merge (9cf0807)	Diff
  FIRMessagingPendingTopicsList.m	90.59%	36.47%	-54.12%

• FirebasePerformance-iOS-FirebasePerformance.framework

  Overall coverage changed from 94.81% (912df58) to 94.71% (9cf0807) by -0.10%.

  Filename	Base (912df58)	Merge (9cf0807)	Diff
  FPRClient.m	95.28%	94.49%	-0.79%
  FPRGaugeManager.m	97.39%	95.42%	-1.96%

Test Logs

• Base (912df58): https://github.com/firebase/firebase-ios-sdk/actions/runs/8900582944
• Merge (9cf0807): https://github.com/firebase/firebase-ios-sdk/actions/runs/8902893370

1. https://storage.googleapis.com/firebase-sdk-metric-reports/uIA62m0kk2.html

[paulb777]

Going to merge in advance of today's nightlies