Update corral.json in preparation for 1.1.5 release

Author: ponylang-main

corral.json

@@ -8,7 +8,7 @@
     "homepage": "https://github.com/ponylang/regex",
     "license": "BSD-2-Clause",
     "documentation_url": "https://ponylang.github.io/regex",
-    "version": "1.1.4",
+    "version": "1.1.5",
     "name": "regex"
   },
   "scripts": {