fix: deps/acorn-plugins/acorn-static-class-features/package.json to r…

…educe vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-INFLIGHT-6095116

deps/acorn-plugins/acorn-static-class-features/package.json

@@ -34,13 +34,13 @@
     }
   ],
   "dependencies": {
-    "acorn-private-class-elements": "^0.1.0"
+    "acorn-private-class-elements": "^0.2.0"
   },
   "deprecated": false,
   "description": "Support for static class features in acorn",
   "devDependencies": {
     "acorn": "^6.1.0",
-    "eslint": "^5.13.0",
+    "eslint": "^6.0.0",
     "eslint-plugin-node": "^8.0.1",
     "mocha": "^5.2.0",
     "test262": "git+https://github.com/tc39/test262.git#33a306d1026b72227eb50a918db19ada16f12b3d",