Upgrade to AGP 7.3.1-alpha01

- upgradle to Gradle 7.3.3
- fix update_studio.sh script to download all the deps
- baseline lint failures
- fix missing dependencies
- Add workaround for b/217613008 for libraries that have custom
  test package name

Test: ./gradlew assembleDebug
      open studio, run activity test
Change-Id: I4a4fb55875d8fd26fc82ffb0192e3cc14756c775
Merged-In: I4a4fb55875d8fd26fc82ffb0192e3cc14756c775
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 9a2124da..f4ae799 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -2,13 +2,13 @@
 # -----------------------------------------------------------------------------
 # All of the following should be updated in sync.
 # -----------------------------------------------------------------------------
-androidGradlePlugin = "7.2.0-alpha07"
+androidGradlePlugin = "7.3.0-alpha01"
 # NOTE: When updating the lint version we also need to update the `api` version
 # supported by `IssueRegistry`'s.' For e.g. r.android.com/1331903
-androidLint = "30.2.0-alpha07"
+androidLint = "30.3.0-alpha01"
 # Once you have a chosen version of AGP to upgrade to, go to
 # https://developer.android.com/studio/archive and find the matching version of Studio.
-androidStudio = "2021.2.1.7"
+androidStudio = "2021.3.1.1"
 # -----------------------------------------------------------------------------
 
 androidGradlePluginMin = "7.0.4"