perf(api particulier): use filter_map instead of map.compact

https://docs.rubocop.org/rubocop-performance/cops_performance.html#performancemapcompact

app/lib/api_particulier/services/sources_service.rb

@@ -7,8 +7,7 @@ module APIParticulier
 
       def available_sources
         @procedure.api_particulier_scopes
-          .map { |provider_and_scope| raw_scopes[provider_and_scope] }
-          .compact
+          .filter_map { |provider_and_scope| raw_scopes[provider_and_scope] }
           .map { |provider, scope| extract_sources(provider, scope) }
           .reduce({}) { |acc, el| acc.deep_merge(el) { |_, this_val, other_val| this_val + other_val } }
       end