Activate asan on ubuntu #6285

Job	Run time
changes	4s
spm-binary-cron	0s
check	2m 59s
sanitizers (macos-12, asan)	8m 14s
sanitizers (macos-12, tsan)	8m 17s
xcodebuild (iOS)	23m 45s
sanitizers (ubuntu-latest, asan)	7m 55s
cmake-prod-db (macos-12, (default))	12m 50s
xcodebuild (tvOS)	15m 25s
sanitizers (ubuntu-latest, tsan)	8m 3s
cmake (macos-12)	6m 39s
cmake-prod-db (macos-12, test-db)	12m 28s
xcodebuild (macOS)	22m 32s
cmake (ubuntu-latest)	7m 48s
pod-lib-lint (FirebaseFirestoreInternal.podspec)	23m 14s
pod-lib-lint (FirebaseFirestore.podspec)	23m 19s
spm-binary	4m 52s
pod-lib-lint-cron	0s
pod-lib-lint (FirebaseFirestoreSwift.podspec)	23m 21s
spm-source (iOS, macos-12)	9m 56s
spm-source (iOS, macos-13)	17m 37s
spm-source (tvOS, macos-12)	8m 14s
spm-source (tvOS, macos-13)	12m 51s
spm-source (macOS, macos-12)	9m 45s
spm-source (macOS, macos-13)	14m 21s
Check all required Firestore tests results	1s
	4h 44m 30s

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