fix podspec

SwiftyRemoteConfig.podspec

@@ -7,18 +7,19 @@ Pod::Spec.new do |spec|
   SwiftyRemoteConfig makes Firebase Remote Config enjoyable to use by combining expressive Swifty API with the benefits fo static typing. This library is strongly inspired by [SwiftyUserDefaults](https://github.com/sunshinejr/SwiftyUserDefaults).
                    DESC
 
-  spec.homepage     = "http://github.com/fumito-ito/SwiftyRemoteConfig"
+  spec.homepage     = "https://github.com/fumito-ito/SwiftyRemoteConfig"
   spec.license      = { :type => "Apache2.0", :file => "LICENSE" }
   spec.authors            = { "Fumito Ito" => "[email protected]" }
   spec.social_media_url   = "https://twitter.com/fumito_ito"
 
   spec.platform     = :ios
   spec.ios.deployment_target = "12.0"
-  spec.source       = { :git => "http://github.com/fumito-ito/SwiftyRemoteConfig", :tag => "#{spec.version}" }
+  spec.source       = { :git => "https://github.com/fumito-ito/SwiftyRemoteConfig.git", :tag => "#{spec.version}" }
   spec.source_files  = "Sources", "Sources/**/*.swift"
-  spec.public_header_files = "SwiftyRemoteConfig.h"
   spec.requires_arc = true
+  spec.swift_version = "5.0", "5.1", "5.2"
 
-  spec.dependency "Firebase/RemoteConfig", "~> 6.29.0"
+  spec.static_framework = true
+  spec.dependency "FirebaseRemoteConfig", "~> 4.9.0"
 
 end