1.2.4

Bugfixes

fixed issue related to inability to buffer payload to error responses (which may happen on certain error handling situations).
fixed recovery from a lost persistent connection leaving process due to ping being sent while still marked as inactive.
fixed datadog integration, which was not generating new spans on retried requests (when :retries plugin is enabled).
fixed splitting strings into key value pairs in cases where the value would contain a "=", such as in certain base64 payloads.