feat: update contributor Bluesky handle (#3903)

Changed the Bluesky handle for contributor "j9t" from "j9t.bsky.social" to "meiert.com" in the contributors.json file. This ensures the correct handle is displayed.

(This commit message was AI-generated.)

Signed-off-by: Jens Oliver Meiert <jens@meiert.com>

Author: j9t

src/config/contributors.json

@@ -2187,7 +2187,7 @@
     "github": "j9t",
     "website": "https://meiert.com/en/",
     "mastodon": "https://mas.to/@j9t",
-    "bluesky": "j9t.bsky.social",
+    "bluesky": "meiert.com",
     "twitter": "j9t",
     "linkedin": "meiert",
     "teams": {