[doc] Update contributors

- Add @jbisotti as a contributor
- Add @soloturn as a contributor
- Add @schosin as a contributor

.all-contributorsrc

@@ -7708,6 +7708,33 @@
       "contributions": [
         "bug"
       ]
+    },
+    {
+      "login": "jbisotti",
+      "name": "Jamie Bisotti",
+      "avatar_url": "https://avatars.githubusercontent.com/u/899712?v=4",
+      "profile": "https://github.com/jbisotti",
+      "contributions": [
+        "bug"
+      ]
+    },
+    {
+      "login": "soloturn",
+      "name": "soloturn",
+      "avatar_url": "https://avatars.githubusercontent.com/u/825568?v=4",
+      "profile": "https://github.com/soloturn",
+      "contributions": [
+        "bug"
+      ]
+    },
+    {
+      "login": "schosin",
+      "name": "schosin",
+      "avatar_url": "https://avatars.githubusercontent.com/u/1669777?v=4",
+      "profile": "https://github.com/schosin",
+      "contributions": [
+        "bug"
+      ]
     }
   ],
   "contributorsPerLine": 7,