Update onigasm

Author: CompuIves

standalone-packages/vscode-textmate/package-lock.json

@@ -38,7 +38,7 @@
     "durations": "^3.4.1",
     "istanbul": "^0.4.4",
     "mocha": "^5.2.0",
-    "onigasm": "^2.1.0",
+    "onigasm": "^2.2.1",
     "remap-istanbul": "^0.6.4",
     "tslint": "^3.15.1",
     "typescript": "^2.0.8",