Bump GoogleAppMeasurement dependency to 8.3.1 (#8377)

* Bump GoogleAppMeasurement dependency to 8.3.1

* CHANGELOG

Author: ncooke3

FirebaseCore/CHANGELOG.md

@@ -1,3 +1,6 @@
+# Firebase 8.3.1
+- [fixed] Swift Package Manager only release to fix an 8.3.0 tagging issue impacting some users. (#8367)
+
 # Firebase 8.2.0
 - [fixed] Stop flooding Swift Package Manager projects with Firebase test schemes. (#8167)
 - [fixed] Removed "Invalid Exclude" warnings for Swift Package Manager using Xcode 13 beta 1.

Package.swift

@@ -139,7 +139,7 @@ let package = Package(
     .package(
       name: "GoogleAppMeasurement",
       url: "https://github.com/google/GoogleAppMeasurement.git",
-      .exact("8.3.0")
+      .exact("8.3.1")
     ),
     .package(
       name: "GoogleDataTransport",