Upgrade io.grpc to 1.60.0 and increase minSdkVersion to 21

[tom-andersen]

No description provided.

[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).

[google-oss-bot]

	1 Warning
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Unit Test Results

     948 files  +   768       948 suites  +768   31m 31s ⏱️ + 27m 25s
  5 178 tests +3 952    5 157 ✔️ +3 947  21 💤 +  5  0 ❌ ±0 
10 441 runs  +7 965  10 399 ✔️ +7 955  42 💤 +10  0 ❌ ±0 

Results for commit f6762a6. ± Comparison against base commit 16a90fa.

♻️ This comment has been updated with latest results.

[google-oss-bot]

Size Report ¹

Affected Products

• firebase-firestore

  Type	Base (16a90fa)	Merge (46b9c0b)	Diff
  aar	1.41 MB	1.41 MB	+415 B (+0.0%)
  apk (aggressive)	704 kB	704 kB	+260 B (+0.0%)
  apk (release)	11.2 MB	11.5 MB	+329 kB (+2.9%)

• firebase-firestore-ktx

  Type	Base (16a90fa)	Merge (46b9c0b)	Diff
  aar	5.20 kB	5.21 kB	+2 B (+0.0%)
  apk (aggressive)	704 kB	705 kB	+256 B (+0.0%)
  apk (release)	11.2 MB	11.5 MB	+329 kB (+2.9%)

• firebase-inappmessaging

  Type	Base (16a90fa)	Merge (46b9c0b)	Diff
  aar	461 kB	461 kB	+394 B (+0.1%)
  apk (aggressive)	1.33 MB	1.35 MB	+14.4 kB (+1.1%)
  apk (release)	11.5 MB	11.8 MB	+317 kB (+2.7%)

• firebase-inappmessaging-display

  Type	Base (16a90fa)	Merge (46b9c0b)	Diff
  apk (aggressive)	2.56 MB	2.58 MB	+14.6 kB (+0.6%)
  apk (release)	13.9 MB	14.2 MB	+320 kB (+2.3%)

• firebase-inappmessaging-display-ktx

  Type	Base (16a90fa)	Merge (46b9c0b)	Diff
  apk (aggressive)	2.56 MB	2.58 MB	+14.6 kB (+0.6%)
  apk (release)	13.9 MB	14.2 MB	+320 kB (+2.3%)

• firebase-inappmessaging-ktx

  Type	Base (16a90fa)	Merge (46b9c0b)	Diff
  apk (aggressive)	1.33 MB	1.35 MB	+14.4 kB (+1.1%)
  apk (release)	11.5 MB	11.8 MB	+317 kB (+2.7%)

Test Logs

• Base (16a90fa): https://github.com/firebase/firebase-android-sdk/actions/runs/7214872760
• Merge (46b9c0b): https://github.com/firebase/firebase-android-sdk/actions/runs/7267675862

1. https://storage.googleapis.com/firebase-sdk-metric-reports/mMqJ3sPkCP.html

[google-oss-bot]

Coverage Report ¹

Affected Products

• firebase-database

  Overall coverage changed from 50.17% (16a90fa) to 50.13% (46b9c0b) by -0.04%.

  Filename	Base (16a90fa)	Merge (46b9c0b)	Diff
  ChildChangeAccumulator.java	96.67%	83.33%	-13.33%

• firebase-firestore

  Overall coverage changed from 44.77% (16a90fa) to 44.84% (46b9c0b) by +0.08%.

  Filename	Base (16a90fa)	Merge (46b9c0b)	Diff
  FirestoreGrpc.java	2.46%	3.13%	+0.66%
  SetMutation.java	94.44%	97.22%	+2.78%

• firebase-messaging

  Overall coverage changed from 83.93% (16a90fa) to 84.08% (46b9c0b) by +0.15%.

  Filename	Base (16a90fa)	Merge (46b9c0b)	Diff
  MessagingAnalytics.java	81.60%	82.00%	+0.40%
  Metadata.java	36.51%	41.27%	+4.76%

• firebase-storage

  Overall coverage changed from 83.96% (16a90fa) to 83.92% (46b9c0b) by -0.04%.

  Filename	Base (16a90fa)	Merge (46b9c0b)	Diff
  StreamDownloadTask.java	88.89%	88.41%	-0.48%

Test Logs

• Base (16a90fa): https://github.com/firebase/firebase-android-sdk/actions/runs/7214872760
• Merge (46b9c0b): https://github.com/firebase/firebase-android-sdk/actions/runs/7267675862

1. https://storage.googleapis.com/firebase-sdk-metric-reports/s9TVnjAXhz.html

[google-oss-bot]

Startup Time Report ¹

The report is too large (122,678 chars) to be displayed on GitHub. Please check this report on GCS.

1. https://storage.googleapis.com/firebase-sdk-metric-reports/lSwGsVy7X8/index.html