DEV: Pin version for Discourse < 3.6.0.beta1-dev (#57)

Author: tgxworld

.discourse-compatibility

@@ -1,3 +1,4 @@
+< 3.6.0.beta1-dev: 8b8e53c0554908638f6e47a26546e8f349027701
 < 3.5.0.beta5-dev: 0537074819c130a79dd7e4c5ee5879bc2723280a
 < 3.5.0.beta1-dev: c69695a876e03e9f719476f9e9f8118ccc38915b
 < 3.4.0.beta1-dev: c6b36e337a896a308a6881dee304047181746063