feat: add visionos support (#560)

Author: okwasniewski

package/react-native-slider.podspec

@@ -12,7 +12,7 @@ Pod::Spec.new do |s|
 
   s.authors      = package['author']
   s.homepage     = package['homepage']
-  s.platform     = :ios, "9.0"
+  s.platforms    = { :ios => "9.0", :visionos => "1.0" }
 
   s.source       = { :git => "https://github.com/callstack/react-native-slider.git", :tag => "v#{s.version}" }
   s.source_files = "ios/**/*.{h,m,mm}"