code: @Test
      public void outdated_scenario() throws JSONException {
          httpPost("keys", jsonKey.toString(), 201);
  
          try {
              // Add two outdated translations
              sendTranslationUpdate("zztranslation", EN, true);
              sendTranslationUpdate("translation", FR, true);
  
              // Update the default translation
              jsonKey.put("translation", "updated translation");
              httpPut("keys/" + keyName, jsonKey.toString(), 200);
  
              // The key should remain outdated
              assertOutdatedStatus(true);
  
              // Update English translations
              sendTranslationUpdate("updated translation", EN, false);
  
              // The key should remain outdated
              assertOutdatedStatus(true);
  
              // Update French translations
              sendTranslationUpdate("updated translation", FR, false);
  
              // Now, all the translation have been updated
              assertOutdatedStatus(false);
  
          } finally {
              // clean the repo
              httpDelete("keys/" + keyName, 204);
          }
      }
docs: Checks the outdated scenario.
  1) A key is added
  2) Add fr translation
  3) Update default translation => key become outdated
  4) Update en translation => key is still outdated
  5) Update fr translation => key is no longer outdated