feat: bump minimal ios version to 12.4 (#2232)

# Summary

PR updating the minimal required version of `iOS` to `12.4`. Please
notice that it can be considered a ***BREAKING CHANGE***

Author: WoLewicki

README.md

@@ -75,6 +75,7 @@ npx expo install react-native-svg
 | >=8              | >=0.57.4     |
 | >=9              | >=0.57.4     |
 | >=12.3.0         | >=0.64.0     |
+| >=15.0.0         | >=0.70.0     |
 
 ## Support for Fabric
 

RNSVG.podspec

@@ -18,9 +18,9 @@ Pod::Spec.new do |s|
   s.visionos.exclude_files = '**/*.macos.{h,m,mm}'
   s.osx.exclude_files = '**/*.ios.{h,m,mm}'
   s.requires_arc    = true
+  s.platforms         = { :osx => "10.14", :ios => "12.4", :tvos => "12.4", :visionos => "1.0" }
 
   if fabric_enabled
-    s.platforms = { :osx => "10.14", :ios => "12.4", :tvos => "11.0", :visionos => "1.0" }
     install_modules_dependencies(s)
 
     s.subspec "common" do |ss|
@@ -29,7 +29,6 @@ Pod::Spec.new do |s|
       ss.pod_target_xcconfig  = { "HEADER_SEARCH_PATHS" => "\"$(PODS_TARGET_SRCROOT)/common/cpp\"" }
     end
   else
-    s.platforms         = { :osx => "10.14", :ios => "10.0", :tvos => "9.2", :visionos => "1.0" }
     s.exclude_files      = 'apple/Utils/RNSVGFabricConversions.h'
     s.dependency           'React-Core'
   end