chore: Merge release-12.19 and release-13.1 branches (#16965)

Co-authored-by: pcfba <111909874+pcfba@users.noreply.github.com>
Co-authored-by: Denver Coneybeare <dconeybe@google.com>
Co-authored-by: Andrew Heard <andrewheard@google.com>

FirebaseRemoteConfigInterop.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FirebaseRemoteConfigInterop'
-  s.version          = '13.1.0'
+  s.version          = '13.1.1'
   s.summary          = 'Interfaces that allow other Firebase SDKs to use Remote Config functionality.'
 
   s.description      = <<-DESC