build(deps): bump https-proxy-agent from 2.2.1 to 2.2.3

Bumps [https-proxy-agent](https://github.com/TooTallNate/node-https-proxy-agent) from 2.2.1 to 2.2.3.
- [Release notes](https://github.com/TooTallNate/node-https-proxy-agent/releases)
- [Commits](TooTallNate/proxy-agents@2.2.1...2.2.3)

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -21,7 +21,7 @@
     "express-session": "^1.15.6",
     "express-validator": "^5.0.3",
     "fuzzquire": "0.0.7",
-    "https-proxy-agent": "^2.1.1",
+    "https-proxy-agent": "^2.2.3",
     "jade": "~1.11.0",
     "json2csv": "^4.3.5",
     "material-components-web": "^0.32.0",

yarn.lock

@@ -464,9 +464,10 @@ acorn@^6.0.7:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.2.tgz#35866fd710528e92de10cf06016498e47e39e1e6"
   integrity sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ==
 
-agent-base@^4.1.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.2.0.tgz#9838b5c3392b962bad031e6a4c5e1024abec45ce"
+agent-base@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.3.0.tgz#8165f01c436009bccad0b1d122f05ed770efc6ee"
+  integrity sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==
   dependencies:
     es6-promisify "^5.0.0"
 
@@ -1877,11 +1878,12 @@ http-parser-js@>=0.5.1:
   resolved "https://registry.yarnpkg.com/http-parser-js/-/http-parser-js-0.5.5.tgz#d7c30d5d3c90d865b4a2e870181f9d6f22ac7ac5"
   integrity sha512-x+JVEkO2PoM8qqpbPbOL3cqHPwerep7OwzK7Ay+sMQjKzaKCqWvjoXm5tqMP9tXWWTnTzAjIhXg+J99XYuPhPA==
 
-https-proxy-agent@^2.1.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.1.tgz#51552970fa04d723e04c56d04178c3f92592bbc0"
+https-proxy-agent@^2.2.3:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.3.tgz#fb6cd98ed5b9c35056b5a73cd01a8a721d7193d1"
+  integrity sha512-Ytgnz23gm2DVftnzqRRz2dOXZbGd2uiajSw/95bPp6v53zPRspQjLm/AfBgqbJ2qfeRXWIOMVLpp86+/5yX39Q==
   dependencies:
-    agent-base "^4.1.0"
+    agent-base "^4.3.0"
     debug "^3.1.0"
 
 [email protected]: