Upgrade cmake build to grpc 162 #6976

Job	Run time
changes	5s
spm-binary-cron	0s
check	2m 31s
cmake (macos-12)	24m 1s
cmake-prod-db (macos-12, (default))	30m 28s
cmake (ubuntu-latest)	16m 46s
pod-lib-lint (FirebaseFirestoreInternal.podspec)	35m 54s
cmake-prod-db (macos-12, test-db)	29m 39s
pod-lib-lint (FirebaseFirestore.podspec)	32m 23s
pod-lib-lint (FirebaseFirestoreSwift.podspec)	39m 4s
pod-lib-lint-cron	0s
sanitizers-mac (macos-12, asan)	24m 45s
sanitizers-ubuntu (ubuntu-latest, asan)	54m 12s
sanitizers-mac (macos-12, tsan)	28m 18s
spm-binary	2m 52s
spm-source (iOS, macos-12)	15m 30s
spm-source (iOS, macos-13)	23m 23s
xcodebuild (iOS)	31m 12s
spm-source (tvOS, macos-12)	29m 5s
xcodebuild (macOS)	32m 57s
spm-source (tvOS, macos-13)	26m 24s
xcodebuild (tvOS)	26m 50s
spm-source (macOS, macos-12)	22m 21s
spm-source (macOS, macos-13)	18m 18s
Check all required Firestore tests results	1s
	9h 6m 59s

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