docs: private String getHeaderName(String name, Map<String, Object> receivedHeaders, TestContext context, HeaderValidationContext validationContext) {
          String headerName = context.resolveDynamicValue(name);
  
          if (!receivedHeaders.containsKey(headerName) &&
                  validationContext.isHeaderNameIgnoreCase()) {
              String key = headerName;
  
              log.debug(String.format("Finding case insensitive header for key '%s'", key));
  
              headerName = receivedHeaders
                      .entrySet()
                      .parallelStream()
                      .filter(item -> item.getKey().equalsIgnoreCase(key))
                      .map(Map.Entry::getKey)
                      .findFirst()
                      .orElseThrow(() -> new ValidationException("Validation failed: No matching header for key '" + key + "'"));
  
              log.info(String.format("Found matching case insensitive header name: %s", headerName));
          }
  
          return headerName;
      }