chore(deps): bump portfinder from 1.0.20 to 1.0.21 (#351)

Bumps [portfinder](https://github.com/indexzero/node-portfinder) from 1.0.20 to 1.0.21.
- [Release notes](https://github.com/indexzero/node-portfinder/releases)
- [Commits](http-party/node-portfinder@v1.0.20...v1.0.21)

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

Author: dependabot-preview[bot]

yarn.lock

@@ -3317,14 +3317,7 @@ async@^1.5.2:
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
   integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
 
-async@^2.0.0:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
-  integrity sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==
-  dependencies:
-    lodash "^4.17.10"
-
-async@^2.1.4:
+async@^2.0.0, async@^2.1.4:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.2.tgz#18330ea7e6e313887f5d2f2a904bac6fe4dd5381"
   integrity sha512-H1qVYh1MYhEEFLsP97cVKqCGo7KfCyTt6uEWqsTBr9SO84oK9Uwbyd/yCW+6rKJLHksBNUVWZDAjfS+Ccx0Bbg==
@@ -11805,9 +11798,9 @@ pn@^1.1.0:
   integrity sha512-2qHaIQr2VLRFoxe2nASzsV6ef4yOOH+Fi9FBOVH6cqeSgUnoyySPZkxzLuzd+RYOQTRpROA0ztTMqxROKSb/nA==
 
 portfinder@^1.0.13, portfinder@^1.0.16, portfinder@^1.0.20:
-  version "1.0.20"
-  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.20.tgz#bea68632e54b2e13ab7b0c4775e9b41bf270e44a"
-  integrity sha512-Yxe4mTyDzTd59PZJY4ojZR8F+E5e97iq2ZOHPz3HDgSvYC5siNad2tLooQ5y5QHyQhc3xVqvyk/eNA3wuoa7Sw==
+  version "1.0.21"
+  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.21.tgz#60e1397b95ac170749db70034ece306b9a27e324"
+  integrity sha512-ESabpDCzmBS3ekHbmpAIiESq3udRsCBGiBZLsC+HgBKv2ezb0R4oG+7RnYEVZ/ZCfhel5Tx3UzdNWA0Lox2QCA==
   dependencies:
     async "^1.5.2"
     debug "^2.2.0"