Add kylec-rpf to the CLA bot allowlist (#726)

## Status

- N/A

## Points for consideration:

- Security: updates the contributor allowlist only; no auth or runtime
behavior changes
- Performance: none

## What's changed?

Adds `kylec-rpf` to `.clabot` and preserves the existing alphabetical
ordering of the contributor allowlist.

- **CLA bot configuration**
  - Added `kylec-rpf` to the `contributors` array
- Kept the list sorted to match the file’s existing maintenance
convention

```json
{
  "contributors": [
    "jrmhaig",
    "KristinaDudnyk",
    "kylec-rpf",
    "loiswells97"
  ]
}
```

## Steps to perform after deploying to production

None.

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: adrian-rpf <193916339+adrian-rpf@users.noreply.github.com>

Author: Copilot

.clabot

@@ -19,6 +19,7 @@
     "jamiebenstead",
     "jrmhaig",
     "KristinaDudnyk",
+    "kylec-rpf",
     "loiswells97",
     "lpmi-13",
     "m-bowley",
@@ -35,4 +36,4 @@
     "zetter-rpf"
   ],
   "message": "We require contributors to sign our Contributor License Agreement, and we don't have you on file. In order for us to review and merge your code, please complete [this form](https://form.raspberrypi.org/4873530) and we'll get you added and review your contribution as soon as possible."
-}
+}