Update testchain dependencies

Author: BellringerQuinn

testchain/package.json

@@ -29,5 +29,8 @@
   },
   "dependencies": {
     "@openzeppelin/contracts": "^4.9.2"
+  },
+  "resolutions": {
+    "elliptic": "^6.6.0"
   }
 }

testchain/yarn.lock

@@ -1143,10 +1143,10 @@ diff@^4.0.1:
   resolved "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz"
   integrity sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==
 
-[email protected], elliptic@^6.5.2, elliptic@^6.5.4:
-  version "6.5.4"
-  resolved "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz"
-  integrity sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==
+[email protected], elliptic@^6.5.2, elliptic@^6.5.4, elliptic@^6.6.0:
+  version "6.6.1"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.6.1.tgz#3b8ffb02670bf69e382c7f65bf524c97c5405c06"
+  integrity sha512-RaddvvMatK2LJHqFJ+YA4WysVN5Ita9E35botqIYspQ4TkRAlCicdzKOjlyv/1Za5RyTNn7di//eEV0uTAfe3g==
   dependencies:
     bn.js "^4.11.9"
     brorand "^1.1.0"