Update contributors list [skip ci]

Author: github-actions[bot]

site/about/contributors.json

@@ -1,11 +1,11 @@
 {
-  "generated": "2026-06-29T17:58:47.762250+00:00",
+  "generated": "2026-07-01T01:15:42.106151+00:00",
   "repo": "harvard-edge/cs249r_book",
   "stats": {
-    "forks": 3008,
-    "issues": 17,
-    "stars": 25057,
-    "watchers": 175
+    "forks": 3010,
+    "issues": 18,
+    "stars": 25085,
+    "watchers": 176
   },
   "total": 97,
   "contributors": [
@@ -20,7 +20,7 @@
       "login": "hzeljko",
       "name": "Zeljko Hrcek",
       "avatar_url": "https://avatars.githubusercontent.com/u/36451783?v=4",
-      "contributions": 286,
+      "contributions": 288,
       "html_url": "https://github.com/hzeljko"
     },
     {