fix: Corrected git version tag in podspec (#491)

Co-authored-by: priyatham.kumar <priyatham.kumar@gameskraft.com>

Author: priyathamkumar

react-native-document-picker.podspec

@@ -11,7 +11,7 @@ Pod::Spec.new do |s|
   s.authors      = package["author"]
 
   s.platforms    = { :ios => "11.0" }
-  s.source       = { :git => "https://github.com/rnmods/react-native-document-picker.git", :tag => "#{s.version}" }
+  s.source       = { :git => "https://github.com/rnmods/react-native-document-picker.git", :tag => "v#{s.version}" }
 
   s.source_files = "ios/**/*.{h,m,mm}"