chore(deps-dev): bump webpack-dev-server from 4.8.1 to 4.9.0

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 4.8.1 to 4.9.0.
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack/webpack-dev-server/compare/v4.8.1...v4.9.0)

---
updated-dependencies:
- dependency-name: webpack-dev-server
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

yarn.lock

@@ -2733,13 +2733,6 @@ astral-regex@^2.0.0:
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-2.0.0.tgz#483143c567aeed4785759c0865786dc77d7d2e31"
   integrity sha512-Z7tMw1ytTXt5jqMcOP+OQteU1VuNK9Y02uuJtKQ1Sv69jXQKKg5cibLwGJow8yzZP+eAc18EmLGPal0bp36rvQ==
 
-async@^2.6.2:
-  version "2.6.4"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.4.tgz#706b7ff6084664cd7eae713f6f965433b5504221"
-  integrity sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==
-  dependencies:
-    lodash "^4.17.14"
-
 async@^3.2.0:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/async/-/async-3.2.2.tgz#2eb7671034bb2194d45d30e31e24ec7e7f9670cd"
@@ -4517,7 +4510,7 @@ debug@4.3.2:
   dependencies:
     ms "2.1.2"
 
-debug@^3.1.0, debug@^3.1.1:
+debug@^3.1.0:
   version "3.2.7"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.7.tgz#72580b7e9145fb39b6676f9c5e5fb100b934179a"
   integrity sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==
@@ -7632,7 +7625,7 @@ lodash.once@^4.1.1:
   resolved "https://registry.yarnpkg.com/lodash.once/-/lodash.once-4.1.1.tgz#0dd3971213c7c56df880977d504c88fb471a97ac"
   integrity sha1-DdOXEhPHxW34gJd9UEyI+0cal6w=
 
-lodash@^4.17.10, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.21, lodash@^4.17.4:
+lodash@^4.17.10, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.21, lodash@^4.17.4:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
@@ -8197,13 +8190,6 @@ mkdirp@^0.5.1:
   dependencies:
     minimist "^1.2.6"
 
-mkdirp@^0.5.5:
-  version "0.5.5"
-  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
-  integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
-  dependencies:
-    minimist "^1.2.5"
-
 modify-values@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/modify-values/-/modify-values-1.0.1.tgz#b3939fa605546474e3e3e3c63d64bd43b4ee6022"
@@ -8881,15 +8867,6 @@ pngjs@^4.0.1:
   resolved "https://registry.yarnpkg.com/pngjs/-/pngjs-4.0.1.tgz#f803869bb2fc1bfe1bf99aa4ec21c108117cfdbe"
   integrity sha512-rf5+2/ioHeQxR6IxuYNYGFytUyG3lma/WW1nsmjeHlWwtb2aByla6dkVc8pmJ9nplzkTA0q2xx7mMWrOTqT4Gg==
 
-portfinder@^1.0.28:
-  version "1.0.28"
-  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.28.tgz#67c4622852bd5374dd1dd900f779f53462fac778"
-  integrity sha512-Se+2isanIcEqf2XMHjyUKskczxbPH7dQnlMjXX6+dybayyHvAf/TCgyMRlzf/B6QDhAEFOGes0pzRo3by4AbMA==
-  dependencies:
-    async "^2.6.2"
-    debug "^3.1.1"
-    mkdirp "^0.5.5"
-
 posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
@@ -11185,9 +11162,9 @@ webpack-dev-middleware@^5.3.1:
     schema-utils "^4.0.0"
 
 webpack-dev-server@^4.3.0:
-  version "4.8.1"
-  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-4.8.1.tgz#58f9d797710d6e25fa17d6afab8708f958c11a29"
-  integrity sha512-dwld70gkgNJa33czmcj/PlKY/nOy/BimbrgZRaR9vDATBQAYgLzggR0nxDtPLJiLrMgZwbE6RRfJ5vnBBasTyg==
+  version "4.9.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-4.9.0.tgz#737dbf44335bb8bde68f8f39127fc401c97a1557"
+  integrity sha512-+Nlb39iQSOSsFv0lWUuUTim3jDQO8nhK3E68f//J2r5rIcp4lULHXz2oZ0UVdEeWXEh5lSzYUlzarZhDAeAVQw==
   dependencies:
     "@types/bonjour" "^3.5.9"
     "@types/connect-history-api-fallback" "^1.3.5"
@@ -11209,7 +11186,6 @@ webpack-dev-server@^4.3.0:
     ipaddr.js "^2.0.1"
     open "^8.0.9"
     p-retry "^4.5.0"
-    portfinder "^1.0.28"
     rimraf "^3.0.2"
     schema-utils "^4.0.0"
     selfsigned "^2.0.1"
@@ -11374,16 +11350,11 @@ write-file-atomic@^4.0.1:
     imurmurhash "^0.1.4"
     signal-exit "^3.0.7"
 
-ws@^8.2.3:
+ws@^8.2.3, ws@^8.4.2:
   version "8.6.0"
   resolved "https://registry.yarnpkg.com/ws/-/ws-8.6.0.tgz#e5e9f1d9e7ff88083d0c0dd8281ea662a42c9c23"
   integrity sha512-AzmM3aH3gk0aX7/rZLYvjdvZooofDu3fFOzGqcSnQ1tOcTWwhM/o+q++E8mAyVVIyUdajrkzWUGftaVSDLn1bw==
 
-ws@^8.4.2:
-  version "8.4.2"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-8.4.2.tgz#18e749868d8439f2268368829042894b6907aa0b"
-  integrity sha512-Kbk4Nxyq7/ZWqr/tarI9yIt/+iNNFOjBXEWgTb4ydaNHBNGgvf2QHbS9fdfsndfjFlFwEd4Al+mw83YkaD10ZA==
-
 x-is-string@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/x-is-string/-/x-is-string-0.1.0.tgz#474b50865af3a49a9c4657f05acd145458f77d82"