chore(package): update https-proxy-agent to version 3.0.1

Closes #94

Author: greenkeeper[bot]

package.json

@@ -91,7 +91,7 @@
     "hads": "^1.7.2",
     "htmlhint": "^0.10.3",
     "http-server": "^0.11.1",
-    "https-proxy-agent": "^2.2.2",
+    "https-proxy-agent": "^3.0.1",
     "husky": "^1.3.1",
     "jasmine-core": "~3.3.0",
     "jasmine-spec-reporter": "^4.1.0",