Update dependency prettier to v2

Author: renovate-bot

package.json

@@ -104,7 +104,7 @@
     "lint-staged": "8.2.1",
     "markdownlint-cli": "0.22.0",
     "opn": "5.5.0",
-    "prettier": "1.18.2",
+    "prettier": "2.1.2",
     "raf": "3.4.1",
     "react-test-renderer": "16.11.0",
     "typescript": "3.6.4",

yarn.lock

@@ -7439,10 +7439,10 @@ prepend-http@^1.0.1:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
   integrity sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw=
 
-prettier@1.18.2:
-  version "1.18.2"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.18.2.tgz#6823e7c5900017b4bd3acf46fe9ac4b4d7bda9ea"
-  integrity sha512-OeHeMc0JhFE9idD4ZdtNibzY0+TPHSpSSb9h8FqtP+YnoZZ1sl8Vc9b1sasjfymH3SonAF4QcA2+mzHPhMvIiw==
+prettier@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.1.2.tgz#3050700dae2e4c8b67c4c3f666cdb8af405e1ce5"
+  integrity sha512-16c7K+x4qVlJg9rEbXl7HEGmQyZlG4R9AgP+oHKRMsMsuk8s+ATStlf1NpDqyBI1HpVyfjLOeMhH2LvuNvV5Vg==
 
 prettier@^1.12.1:
   version "1.19.1"