build(deps-dev): bump webpack-dev-server from 3.1.8 to 3.1.9

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 3.1.8 to 3.1.9.
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/master/CHANGELOG.md)
- [Commits](webpack/webpack-dev-server@v3.1.8...v3.1.9)

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

Author: dependabot-support

yarn.lock

@@ -5336,10 +5336,6 @@ url-join@^2.0.2:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/url-join/-/url-join-2.0.5.tgz#5af22f18c052a000a48d7b82c5e9c2e2feeda728"
 
-url-join@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/url-join/-/url-join-4.0.0.tgz#4d3340e807d3773bda9991f8305acdcc2a665d2a"
-
 [email protected]:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.0.5.tgz#0854860422afdcfefeb6c965c662d4800169927b"
@@ -5455,16 +5451,13 @@ wcwidth@^1.0.0:
   dependencies:
     defaults "^1.0.3"
 
-webpack-dev-middleware@3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.2.0.tgz#a20ceef194873710052da678f3c6ee0aeed92552"
+webpack-dev-middleware@3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.4.0.tgz#1132fecc9026fd90f0ecedac5cbff75d1fb45890"
   dependencies:
-    loud-rejection "^1.6.0"
     memory-fs "~0.4.1"
     mime "^2.3.1"
-    path-is-absolute "^1.0.0"
     range-parser "^1.0.3"
-    url-join "^4.0.0"
     webpack-log "^2.0.0"
 
 webpack-dev-middleware@^2.0.6:
@@ -5480,8 +5473,8 @@ webpack-dev-middleware@^2.0.6:
     webpack-log "^1.0.1"
 
 webpack-dev-server@^3.1.4:
-  version "3.1.8"
-  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.8.tgz#eb7a95945d1108170f902604fb3b939533d9daeb"
+  version "3.1.9"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.9.tgz#8b32167624d2faff40dcedc2cbce17ed1f34d3e0"
   dependencies:
     ansi-html "0.0.7"
     bonjour "^3.5.0"
@@ -5508,7 +5501,7 @@ webpack-dev-server@^3.1.4:
     spdy "^3.4.1"
     strip-ansi "^3.0.0"
     supports-color "^5.1.0"
-    webpack-dev-middleware "3.2.0"
+    webpack-dev-middleware "3.4.0"
     webpack-log "^2.0.0"
     yargs "12.0.2"