Update version to 2.7.3

Author: BrandonStalnaker

package.json

@@ -4,7 +4,7 @@
   "homepage": "https://www.mparticle.com",
   "license": "Apache-2.0",
   "repository": "mParticle/react-native-mparticle",
-  "version": "2.7.2",
+  "version": "2.7.3",
   "main": "js/index.js",
   "scripts": {
     "test": "./node_modules/standard/bin/cmd.js",

react-native-mparticle.podspec

@@ -11,7 +11,8 @@ Pod::Spec.new do |s|
 
   s.homepage     = package['homepage']
   s.license      = package['license']
-  s.platform     = { :ios => "9.0", :tvos => "9.0" }
+  s.platform     = :ios, "9.0"
+  s.tvos.deployment_target = "13.0"
 
 
   s.source       = { :git => "https://github.com/mParticle/react-native-mparticle.git", :tag => "#{s.version}" }