minor #1150 Bump http-proxy from 1.18.0 to 1.18.1 (dependabot[bot])

This PR was merged into the master branch.

Discussion
----------

Bump http-proxy from 1.18.0 to 1.18.1

Bumps [http-proxy](https://github.com/http-party/node-http-proxy) from 1.18.0 to 1.18.1.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/http-party/node-http-proxy/blob/master/CHANGELOG.md">http-proxy's changelog</a>.</em></p>
<blockquote>
<h2><a href="https://github.com/http-party/node-http-proxy/compare/1.18.0...v1.18.1">v1.18.1</a> - 2020-05-17</h2>
<h3>Merged</h3>
<ul>
<li>Skip sending the proxyReq event when the expect header is present <a href="https://github-redirect.dependabot.com/http-party/node-http-proxy/pull/1447"><code>[#1447](https://github.com/http-party/node-http-proxy/issues/1447)</code></a></li>
<li>Remove node6 support, add node12 to build <a href="https://github-redirect.dependabot.com/http-party/node-http-proxy/pull/1397"><code>[#1397](https://github.com/http-party/node-http-proxy/issues/1397)</code></a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/http-party/node-http-proxy/commit/9b96cd725127a024dabebec6c7ea8c807272223d"><code>9b96cd7</code></a> 1.18.1</li>
<li><a href="https://github.com/http-party/node-http-proxy/commit/335aeeba2f0c286dc89c402eeb76af47834c89a3"><code>335aeeb</code></a> Skip sending the proxyReq event when the expect header is present (<a href="https://github-redirect.dependabot.com/http-party/node-http-proxy/issues/1447">#1447</a>)</li>
<li><a href="https://github.com/http-party/node-http-proxy/commit/dba39668ba4c9ad461316e834b2d64b77e1ca88e"><code>dba3966</code></a> Remove node6 support, add node12 to build (<a href="https://github-redirect.dependabot.com/http-party/node-http-proxy/issues/1397">#1397</a>)</li>
<li>See full diff in <a href="https://github.com/http-party/node-http-proxy/compare/1.18.0...1.18.1">compare view</a></li>
</ul>
</details>
<br />

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Commits
-------

ec4f1a2 Bump http-proxy from 1.18.0 to 1.18.1

Author: javiereguiluz

yarn.lock

@@ -2231,7 +2231,7 @@ debug@2.6.9, debug@^2.2.0, debug@^2.3.3:
   dependencies:
     ms "2.0.0"
 
-debug@^3.0.0, debug@^3.1.0, debug@^3.1.1, debug@^3.2.5:
+debug@^3.1.0, debug@^3.1.1, debug@^3.2.5:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
   integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
@@ -2679,9 +2679,9 @@ 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"
@@ -2943,11 +2943,9 @@ 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@^1.0.2:
   version "1.0.2"
@@ -3430,9 +3428,9 @@ http-proxy-middleware@0.19.1:
     micromatch "^3.1.10"
 
 http-proxy@^1.17.0:
-  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"