Updated minimum target to iOS 15

Author: paulsolt-ofsw

Podfile

@@ -1,5 +1,5 @@
 source 'https://github.com/CocoaPods/Specs.git'
-platform :ios, '12.0'
+platform :ios, '15.0'
 
 target :"sf-iosTests" do
   podspec :path => './sf-ios.podspec'

sf-ios.podspec

@@ -10,10 +10,9 @@ Pod::Spec.new do |s|
   s.requires_arc     = true
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
 
-  s.platform         = :ios, '12.0'
-  s.ios.deployment_target = '12.0'
+  s.platform         = :ios, '15.0'
+  s.ios.deployment_target = '15.0'
 
   s.source_files = 'sf-ios/**/*.{h,m}'
-
   s.frameworks = 'Foundation'
 end