Merge branch 'ld-docs-graphql-filter-logs-improvement' into 'master'

Update GraphQL log filter doc

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/181474



Merged-by: Luke Duncalfe <lduncalfe@gitlab.com>
Co-authored-by: Luke Duncalfe <lduncalfe@eml.cc>