BUG: Class cast exceptions into the CrsConversionService

In some of our envs we observed ClassCastException in CrsConversionService. Example:

    "type": "java.lang.ClassCastException",
    "message": "com.google.gson.JsonPrimitive cannot be cast to com.google.gson.JsonObject",
    "parsedStack": [
      {
        "level": 0,
        "method": "com.google.gson.JsonObject.getAsJsonObject",
        "fileName": "JsonObject.java",
        "line": 192
      },
      {
        "level": 1,
        "method": "org.opengroup.osdu.storage.conversion.CrsConversionService.getFeature",
        "fileName": "CrsConversionService.java",
        "line": 621
      },