update podspec

Author: Coledunsby

CDCodabarView.podspec

@@ -1,12 +1,12 @@
 Pod::Spec.new do |s|
     s.name              = "CDCodabarView"
-    s.version           = "1.1.0"
-    s.swift_version     = "4.0"
+    s.version           = "1.2.0"
+    s.swift_version     = "5.0"
     s.summary           = "Codabar Barcode Generator for iOS."
     s.homepage          = "https://github.com/Coledunsby/CDCodabarView"
     s.authors           = { "Cole Dunsby" => "coledunsby@gmail.com" }
     s.license           = { :type => "MIT", :file => 'LICENSE' }
-    s.platform          = :ios, "9.0"
+    s.platform          = :ios, "12.0"
     s.requires_arc      = true
     s.source            = { :git => "https://github.com/Coledunsby/CDCodabarView.git", :tag => "v/#{s.version}" }
     s.source_files      = "*.swift"