Move Map Libre API key to Xcode Cloud (#1313)

* Add config_production lane

* Add maplibre to .gitignore

* Add setupMapLibreKey

* Add documentation

* Fix failing UTs

* Fix more UTs

* Cleanup

* Add secrets.xcconfig

* Cleanup gitignore file

* Update post-checkout hook

* Cleanup SetupProject

* Update project

* Remove leftover in SetupProject

* Cleanup project.yml

* Add fastlane-plugin-xcconfig

* Improve test

* Update docs

fastlane/Fastfile

@@ -180,6 +180,9 @@ lane :config_nightly do
   data = YAML.load_file target_file_path
   data["settings"]["BASE_APP_GROUP_IDENTIFIER"] = "io.element.nightly"
   data["settings"]["BASE_BUNDLE_IDENTIFIER"] = "io.element.elementx.nightly"
+
+  config_maplibre()
+  
   File.open(target_file_path, 'w') { |f| YAML.dump(data, f) }
 
   xcodegen(spec: "project.yml")
@@ -193,6 +196,11 @@ lane :config_nightly do
   update_app_icon(caption_text: "Nightly #{release_version}", modulate: "100,20,100")
 end
 
+lane :config_production do
+  config_maplibre()
+  xcodegen(spec: "project.yml")
+end
+
 lane :upload_dsyms_to_sentry do |options|
   auth_token = ENV["SENTRY_AUTH_TOKEN"]
   UI.user_error!("Invalid Sentry Auth token.") unless !auth_token.to_s.empty?
@@ -409,5 +417,15 @@ private_lane :create_simulator_if_necessary do |options|
   rescue
     sh("xcrun simctl create '#{simulator_name}' #{simulator_type}")
   end
-
+end
+
+private_lane :config_maplibre do
+  api_key = ENV["MAPLIBRE_API_KEY"]
+  UI.user_error!("Invalid Map Libre API key.") unless !api_key.to_s.empty?
+
+  set_xcconfig_value(
+    path: './secrets.xcconfig',
+    name: 'MAPLIBRE_API_KEY',
+    value: api_key
+  )
 end