Update dependency @gitlab/ui to v18.6.0

package.json

@@ -43,7 +43,7 @@
     "@babel/preset-env": "^7.10.1",
     "@gitlab/at.js": "1.5.5",
     "@gitlab/svgs": "1.158.0",
-    "@gitlab/ui": "18.3.0",
+    "@gitlab/ui": "18.6.0",
     "@gitlab/visual-review-tools": "1.6.1",
     "@rails/actioncable": "^6.0.3-1",
     "@sentry/browser": "^5.10.2",

yarn.lock

@@ -848,10 +848,10 @@
   resolved "https://registry.yarnpkg.com/@gitlab/svgs/-/svgs-1.158.0.tgz#300d416184a2b0e05f15a96547f726e1825b08a1"
   integrity sha512-5OJl+7TsXN9PJhY6/uwi+mTwmDZa9n/6119rf77orQ/joFYUypaYhBmy/1TcKVPsy5Zs6KCxE1kmGsfoXc1TYA==
 
-"@gitlab/ui@18.3.0":
-  version "18.3.0"
-  resolved "https://registry.yarnpkg.com/@gitlab/ui/-/ui-18.3.0.tgz#c582eca1a0a851823700dabc7f4456feef882d9a"
-  integrity sha512-H0I3ExZJIqDd9rFDzyZwUerS3ZHDxRf2wHmAzMzK9smq/kr8aL5Pvb2E0KPcgDsVhGQCt7coCBN5NI0p+kf8oQ==
+"@gitlab/ui@18.6.0":
+  version "18.6.0"
+  resolved "https://registry.yarnpkg.com/@gitlab/ui/-/ui-18.6.0.tgz#b0009ddbd0c6a058b3648786c8dbc5e038dd78c9"
+  integrity sha512-kFrJIVeAyAjrEQuadReuFmSV4Lw1V9LkgnSzhE0TdIkjLtST9y0QLH1Z0REH3QQZe7GbJIRQfZ8ItXpVWJsrgw==
   dependencies:
     "@babel/standalone" "^7.0.0"
     "@gitlab/vue-toasted" "^1.3.0"