Prepare for release 2.7.3

Author: Brandon Sneed

CHANGELOG.md

@@ -1,6 +1,11 @@
 Change Log
 ==========
 
+Version 2.7.3 *(7th May, 2021)*
+-------------------------------------------
+* Make Firebase key mapping recursive.
+* Added Swift Package Manager support.
+
 Version 2.7.2 *(5th March, 2021)*
 -------------------------------------------
 * Map "order completed" to purchase instead of deprecated ecommerce_purchase.

Segment-Firebase.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "Segment-Firebase"
-  s.version          = "2.7.2"
+  s.version          = "2.7.3"
   s.summary          = "Firebase Integration for Segment's analytics-ios library."
 
   s.description      = <<-DESC