Merge branch 'sh-rename-rack-attack-request-method' into 'master'

Rename Rack Attack log field: request_method -> method

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/183888



Merged-by: Allison Browne <abrowne@gitlab.com>
Approved-by: Tarun Vellishetty <tvellishetty@gitlab.com>
Approved-by: Allison Browne <abrowne@gitlab.com>
Reviewed-by: Allison Browne <abrowne@gitlab.com>
Co-authored-by: Stan Hu <stanhu@gmail.com>