docs: update .all-contributorsrc [skip ci]

allcontributors[bot] · lwasser · commit 07b598350b9a · 2023-04-12T17:32:44.000-06:00
diff --git a/.all-contributorsrc b/.all-contributorsrc
@@ -243,6 +243,15 @@
         "code",
         "review"
       ]
+    },
+    {
+      "login": "dhirschfeld",
+      "name": "Dave Hirschfeld",
+      "avatar_url": "https://avatars.githubusercontent.com/u/881019?v=4",
+      "profile": "https://dhirschfeld.github.io",
+      "contributions": [
+        "review"
+      ]
     }
   ],
   "contributorsPerLine": 7,
