chore(license): update license (#207)

Author: james-a-morris

package.json

@@ -2,7 +2,7 @@
   "name": "@across-protocol/contracts-v2",
   "version": "2.0.1",
   "author": "UMA Team",
-  "license": "AGPL-3.0",
+  "license": "AGPL-3.0-only",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/across-protocol/across-smart-contracts-v2.git"