Bump @types/webpack-env in /terminus-plugin-manager

Bumps [@types/webpack-env](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/webpack-env) from 1.13.0 to 1.13.9.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/webpack-env)

terminus-plugin-manager/package.json

@@ -20,7 +20,7 @@
     "@types/mz": "0.0.32",
     "@types/node": "12.0.2",
     "@types/semver": "^5.3.32",
-    "@types/webpack-env": "1.13.0",
+    "@types/webpack-env": "1.13.9",
     "css-loader": "^0.28.0",
     "ngx-pipes": "^1.6.1",
     "semver": "^6.1.0"

terminus-plugin-manager/yarn.lock

@@ -19,10 +19,10 @@
   resolved "https://registry.yarnpkg.com/@types/semver/-/semver-5.4.0.tgz#f3658535af7f1f502acd6da7daf405ffeb1f7ee4"
   integrity sha512-PBHCvO98hNec9A491vBbh0ZNDOVxccwKL1u2pm6fs9oDgm7SEnw0lEHqHfjsYryDxnE3zaf7LvERWEXjOp1hig==
 
-"@types/webpack-env@1.13.0":
-  version "1.13.0"
-  resolved "https://registry.yarnpkg.com/@types/webpack-env/-/webpack-env-1.13.0.tgz#3044381647e11ee973c5af2e925323930f691d80"
-  integrity sha1-MEQ4FkfhHulzxa8uklMjkw9pHYA=
+"@types/webpack-env@1.13.9":
+  version "1.13.9"
+  resolved "https://registry.yarnpkg.com/@types/webpack-env/-/webpack-env-1.13.9.tgz#a67287861c928ebf4159a908d1fb1a2a34d4097a"
+  integrity sha512-p8zp5xqkly3g4cCmo2mKOHI9+Z/kObmDj0BmjbDDJQlgDTiEGTbm17MEwTAusV6XceCy+bNw9q/ZHXHyKo3zkg==
 
 JSONStream@^1.3.4, JSONStream@^1.3.5:
   version "1.3.5"