Bump http-proxy from 1.18.0 to 1.18.1 in /frontend

Bumps [http-proxy](https://github.com/http-party/node-http-proxy) from 1.18.0 to 1.18.1.
- [Release notes](https://github.com/http-party/node-http-proxy/releases)
- [Changelog](https://github.com/http-party/node-http-proxy/blob/master/CHANGELOG.md)
- [Commits](http-party/node-http-proxy@1.18.0...1.18.1)

Signed-off-by: dependabot[bot] <support@github.com>

frontend/yarn.lock

@@ -131,12 +131,10 @@
     "@angular-devkit/core" "7.3.10"
     rxjs "6.3.3"
 
-"@angular/animations@^7.0.0":
-  version "7.2.16"
-  resolved "https://registry.yarnpkg.com/@angular/animations/-/animations-7.2.16.tgz#6e3f43df292bc53c3a526dabfd8025b3cd03b070"
-  integrity sha512-jH7haM3Hgtn1EW9b0Vfq6UqSz+rx3l7k+gJi9tuHEOPZdBTjtv3sNQxmM0IKxzOuTfM8KhRFkUlzyi43kfdp0w==
-  dependencies:
-    tslib "^1.9.0"
+"@angular/animations@^9.1.11":
+  version "9.1.12"
+  resolved "https://registry.yarnpkg.com/@angular/animations/-/animations-9.1.12.tgz#1c9c1a792be4b52b196cab1e5c88bd319b60716d"
+  integrity sha512-tphpf9QHnOPoL2Jl7KpR+R5aHNW3oifLEmRUTajJYJGvo1uzdUDE82+V9OGOinxJsYseCth9gYJhN24aYTB9NA==
 
 "@angular/cdk@^7.0.1":
   version "7.3.7"
@@ -739,6 +737,13 @@ amdefine@>=0.0.4:
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
   integrity sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=
 
+angular-notifier@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/angular-notifier/-/angular-notifier-6.0.1.tgz#54111ba4fab70b3b3600dbc87ed2dd63a4847aab"
+  integrity sha512-eC312pNkHfjBU1nflOxtRKbkuxZGthZj23wK1unZ9u+sIhdrUm2Fd2j4Tud8+5z9wQX+ec59v4pBfayO3AFx+Q==
+  dependencies:
+    tslib "^1.9.0"
+
 angular7-json-schema-form@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/angular7-json-schema-form/-/angular7-json-schema-form-1.0.4.tgz#c8e16aae990d490ef674a1ab057e6434c75607f5"
@@ -2212,7 +2217,7 @@ debug@3.1.0, debug@~3.1.0:
   dependencies:
     ms "2.0.0"
 
-debug@^3.0.0, debug@^3.1.0, debug@^3.1.1:
+debug@^3.1.0, debug@^3.1.1:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
@@ -2745,9 +2750,9 @@ etag@~1.8.1:
   integrity sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
 
 eventemitter3@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.0.tgz#d65176163887ee59f386d64c82610b696a4a74eb"
-  integrity sha512-qerSRB0p+UDEssxTtm6EDKcE7W4OaoisfIMl4CngyEhjpYglocpNg6UEqCvemdGhosAsg4sO2dXJOdyBifPGCg==
+  version "4.0.7"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.7.tgz#2de9b68f6528d5644ef5c59526a1b4a07306169f"
+  integrity sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==
 
 events@^3.0.0:
   version "3.1.0"
@@ -3101,11 +3106,9 @@ flush-write-stream@^1.0.0:
     readable-stream "^2.3.6"
 
 follow-redirects@^1.0.0:
-  version "1.11.0"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.11.0.tgz#afa14f08ba12a52963140fe43212658897bc0ecb"
-  integrity sha512-KZm0V+ll8PfBrKwMzdo5D13b1bur9Iq9Zd/RMmAoQQcl2PxxFml8cxXPaaPYVbV0RjNjq1CU7zIzAOqtUPudmA==
-  dependencies:
-    debug "^3.0.0"
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.13.0.tgz#b42e8d93a2a7eea5ed88633676d6597bc8e384db"
+  integrity sha512-aq6gF1BEKje4a9i9+5jimNFIpq4Q1WiwBToeRK5NvZBd/TRsmW8BsJfOEGkr76TbOyPVD3OVDN910EcUNtRYEA==
 
 for-in@^0.1.3:
   version "0.1.8"
@@ -3440,6 +3443,11 @@ gzip-size@^5.0.0:
     duplexer "^0.1.1"
     pify "^4.0.1"
 
+hammerjs@^2.0.8:
+  version "2.0.8"
+  resolved "https://registry.yarnpkg.com/hammerjs/-/hammerjs-2.0.8.tgz#04ef77862cff2bb79d30f7692095930222bf60f1"
+  integrity sha1-BO93hiz/K7edMPdpIJWTAiK/YPE=
+
 handle-thing@^1.2.5:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/handle-thing/-/handle-thing-1.2.5.tgz#fd7aad726bf1a5fd16dfc29b2f7a6601d27139c4"
@@ -3676,9 +3684,9 @@ http-proxy-middleware@~0.18.0:
     micromatch "^3.1.9"
 
 http-proxy@^1.13.0, http-proxy@^1.16.2:
-  version "1.18.0"
-  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.18.0.tgz#dbe55f63e75a347db7f3d99974f2692a314a6a3a"
-  integrity sha512-84I2iJM/n1d4Hdgc6y2+qY5mDaz2PUVjlg9znE9byl+q0uC3DeByqBGReQu5tpLK0TAqTIXScRUV+dg7+bUPpQ==
+  version "1.18.1"
+  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.18.1.tgz#401541f0534884bbf95260334e72f88ee3976549"
+  integrity sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==
   dependencies:
     eventemitter3 "^4.0.0"
     follow-redirects "^1.0.0"