fix: ensure logging status codes field names are consistent

What does this MR do?

LabKit logs all HTTP responses with a status field of an integer. We ensure that all errors now use this convention and store the full status text as status_text.

This is needed to enusre Elasticsearch doesn't drop logs due to mapping conflicts.

Changelog: fixed

TODO

• I added the Changelog trailer (e.g. Changelog: added) to the commits that need to be included in the changelog
• I added unit tests or they are not required
• I added acceptance tests or they are not required
• I added documentation (or it's not required)
• I followed code review guidelines
• I followed Go Style guidelines