Remove CODEOWNERS trailing whitespace (#150882)

New analyze error in an unrelated PR 
```
╔═╡ERROR #1╞════════════════════════════════════════════════════════════════════
║ /b/s/w/ir/x/w/flutter/CODEOWNERS:13: trailing U+0020 space character
╚═══════════════════════════════════════════════════════════════════════════════
```

https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8744032390138579057/+/u/run_test.dart_for_analyze_shard_and_subshard_None/stdout

On this commit 

2537b49e4e
This commit is contained in:
Jenn Magder 2024-06-26 14:59:56 -07:00 committed by GitHub
parent 45ead889b9
commit a52e266b79
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194