Move min ios version to 13.4 for OSS (#36795)

Summary:
Pull Request resolved: facebook/react-native#36795

This change bump the min iOS version for React Native to 13.4, to align with company guidelines.

## Changelog:
[iOS][Changed] - Moved the min iOS version to 13.4

Reviewed By: cortinico

Differential Revision: D44634663

fbshipit-source-id: 035e8fcbb395f7394f8253e3ec485ad9937531c2

Original: facebook/react-native@610b14e

template/template/ios/HelloWorld.xcodeproj/project.pbxproj

@@ -438,7 +438,7 @@
 					"$(inherited)",
 				);
 				INFOPLIST_FILE = HelloWorldTests/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 12.4;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.4;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -462,7 +462,7 @@
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				COPY_PHASE_STRIP = NO;
 				INFOPLIST_FILE = HelloWorldTests/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 12.4;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.4;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -580,7 +580,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 12.4;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.4;
 				LD_RUNPATH_SEARCH_PATHS = (
 					/usr/lib/swift,
 					"$(inherited)",
@@ -644,7 +644,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 12.4;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.4;
 				LD_RUNPATH_SEARCH_PATHS = (
 					/usr/lib/swift,
 					"$(inherited)",

template/template/ios/Podfile

@@ -57,6 +57,6 @@ target 'HelloWorld' do
       config[:reactNativePath],
       :mac_catalyst_enabled => false
     )
-    __apply_Xcode_12_5_M1_post_install_workaround(installer)
+    __fix_double_definition_of_clockid_in_folly()
   end
 end