Use same emoji as the plugin for the .strings generation lint step

Author: mokagio

.buildkite/pipeline.yml

@@ -123,10 +123,7 @@ steps:
         plugins: *common_plugins
         agents:
           queue: "android"
-      # Runs the `.strings` generation automation to ensure all the
-      # `LocalizedString` calls in the code can be correctly parsed by Apple's
-      # `genstrings`.
-      - label: "Lint Localized Strings Format"
+      - label: ":sleuth_or_spy: Lint Localized Strings Format"
         command: .buildkite/commands/lint-localized-strings-format.sh
         plugins: *common_plugins
         env: *common_env