Bump versions for 8.12.1 (#9318)

Author: ryanwilson

Firebase.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'Firebase'
-  s.version          = '8.12.0'
+  s.version          = '8.12.1'
   s.summary          = 'Firebase'
 
   s.description      = <<-DESC
@@ -41,7 +41,7 @@ Simplify your app development, grow your user base, and monetize more effectivel
   end
 
   s.subspec 'CoreOnly' do |ss|
-    ss.dependency 'FirebaseCore', '8.12.0'
+    ss.dependency 'FirebaseCore', '8.12.1'
     ss.source_files = 'CoreOnly/Sources/Firebase.h'
     ss.preserve_paths = 'CoreOnly/Sources/module.modulemap'
     if ENV['FIREBASE_POD_REPO_FOR_DEV_POD'] then
@@ -142,7 +142,7 @@ Simplify your app development, grow your user base, and monetize more effectivel
 
   s.subspec 'Firestore' do |ss|
     ss.dependency 'Firebase/CoreOnly'
-    ss.dependency 'FirebaseFirestore', '~> 8.12.0'
+    ss.dependency 'FirebaseFirestore', '~> 8.12.1'
   end
 
   s.subspec 'Functions' do |ss|

FirebaseCore.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FirebaseCore'
-  s.version          = '8.12.0'
+  s.version          = '8.12.1'
   s.summary          = 'Firebase Core'
 
   s.description      = <<-DESC

FirebaseFirestore.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FirebaseFirestore'
-  s.version          = '8.12.0'
+  s.version          = '8.12.1'
   s.summary          = 'Google Cloud Firestore'
 
   s.description      = <<-DESC

FirebaseFirestoreSwift.podspec

@@ -5,7 +5,7 @@
 
 Pod::Spec.new do |s|
   s.name                    = 'FirebaseFirestoreSwift'
-  s.version                 = '8.12.0-beta'
+  s.version                 = '8.12.1-beta'
   s.summary                 = 'Swift Extensions for Google Cloud Firestore'
 
   s.description      = <<-DESC