Read provisioning profile from xcconfig in Fastlane

Author: mokagio

fastlane/Fastfile

@@ -98,7 +98,10 @@ platform :ios do
       export_options: {
         # FIXME: Compute the value
         provisioningProfiles: {
-          "com.automattic.gravatar-sdk-demo-uikit.prototype-build": "match InHouse com.automattic.gravatar-sdk-demo-uikit.prototype-build"
+          "#{bundle_id_prototype_build!}": read_from_xcconfig!(
+            key: 'PROVISIONING_PROFILE_SPECIFIER',
+            xcconfig: XCCONFIG_PROTOTYPE_BUILD
+          )
         },
         method: 'enterprise',
         signingSytle: 'manual'