[stable-4.9] Bump webpack-dev-server from 4.15.1 to 5.0.4 (#4965)

* [stable-4.9] Bump webpack-dev-server from 4.15.1 to 5.0.4

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 4.15.1 to 5.0.4.
- [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@v4.15.1...v5.0.4)

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

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

* config - update https and routes format

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Martin Hradil <mhradil@redhat.com>

config/webpack.base.config.js

@@ -73,9 +73,7 @@ module.exports = (inputConfigs) => {
             historyApiFallback: true,
             host: '0.0.0.0',
             hot: false,
-            https: customConfigs.UI_USE_HTTPS,
             liveReload: true,
-            magicHtml: false,
             onListening: (server) =>
               console.log(
                 'App should run on:',
@@ -84,7 +82,14 @@ module.exports = (inputConfigs) => {
                 }`,
               ),
             port: customConfigs.UI_PORT,
-            proxy: customConfigs.WEBPACK_PROXY,
+            proxy: Object.entries(customConfigs.WEBPACK_PROXY).map(
+              ([k, v]) => ({
+                context: [k],
+                target: v,
+                changeOrigin: true,
+              }),
+            ),
+            server: { type: customConfigs.UI_USE_HTTPS ? 'https' : 'http' },
             static: { directory: resolve(__dirname, '../dist') },
           },
         }),