docs: add JoshuaKGoldberg as a contributor for bug (#314)

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

Author: allcontributors[bot]

.all-contributorsrc

@@ -576,6 +576,15 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "JoshuaKGoldberg",
+      "name": "Josh Goldberg",
+      "avatar_url": "https://avatars.githubusercontent.com/u/3335181?v=4",
+      "profile": "http://www.joshuakgoldberg.com",
+      "contributions": [
+        "bug"
+      ]
     }
   ],
   "skipCi": true