Update dependency @gitlab/ui to v6

package.json

@@ -38,7 +38,7 @@
     "@babel/plugin-syntax-import-meta": "^7.2.0",
     "@babel/preset-env": "^7.6.2",
     "@gitlab/svgs": "^1.79.0",
-    "@gitlab/ui": "5.36.0",
+    "@gitlab/ui": "6.0.0",
     "@gitlab/visual-review-tools": "1.0.3",
     "apollo-cache-inmemory": "^1.5.1",
     "apollo-client": "^2.5.1",

yarn.lock

@@ -995,10 +995,10 @@
   resolved "https://registry.yarnpkg.com/@gitlab/svgs/-/svgs-1.79.0.tgz#7e79666118d6adc0247bdb3b3b6b2b299aa5a439"
   integrity sha512-0pTUviQqwyaKBOB6OL7Mmr2dQn/dGB03XslBMtL9lFZz1baB7d6xf+zxFU0GBAJUJan397IbBddE1jjUAQT8Fw==
 
-"@gitlab/ui@5.36.0":
-  version "5.36.0"
-  resolved "https://registry.yarnpkg.com/@gitlab/ui/-/ui-5.36.0.tgz#3087b23c138ad1c222f6b047e533f253371bc618"
-  integrity sha512-XXWUYZbRItKh9N92Vxql04BJ05uW5HlOuTCkD+lMbUgneqYTgVoKGH8d9kD++Jy7q8l5+AfzjboUn2n9sbQMZA==
+"@gitlab/ui@6.0.0":
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/@gitlab/ui/-/ui-6.0.0.tgz#1d347fca1752732226f9b61b9fcbd8b60982b7cf"
+  integrity sha512-d37M+4MJen2dLp/svPDBcPVYZi4mgl5Gj01SPM7TeqtBl6gnps9KSjRiYd4P0FBPTbt3QQ8k2qkQ8uTi2q/o3w==
   dependencies:
     "@babel/standalone" "^7.0.0"
     "@gitlab/vue-toasted" "^1.2.1"