Fix localization codeowners
What does this MR do?
Codeowners entries can't end with **, which is reserved for paths and not files. Just ending in / is enough to say all content in that directory and its subdirectories.
This repeats the fix I did in Update codeowners that don't need wildcards (gitlab!192969 - merged).
Why was this MR needed?
This was needed as changed were merged directly to localization files, causing conflicts in MRs in the localization fork: !5693 (merged)
We can see that the approval rule does not show up in that MR, so we need to remove the ** so someone on the localization team can inform authors to remove changes to localization files.