[skip ci] Update dependency prettier to v2.3.1

Author: renovate-bot

package.json

@@ -67,7 +67,7 @@
     "gatsby-source-filesystem": "2.11.0",
     "gatsby-transformer-sharp": "2.12.0",
     "node-sass": "4.14.1",
-    "prettier": "2.2.1",
+    "prettier": "2.3.1",
     "stylelint": "13.9.0",
     "stylelint-config-recess-order": "2.3.0",
     "stylelint-config-recommended": "3.0.0",

yarn.lock

@@ -14944,10 +14944,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@2.2.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.2.1.tgz#795a1a78dd52f073da0cd42b21f9c91381923ff5"
-  integrity sha512-PqyhM2yCjg/oKkFPtTGUojv7gnZAoG80ttl45O6x2Ug/rMJw4wcc9k6aaf2hibP7BGVCCM33gZoGjyvt9mm16Q==
+prettier@2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.3.1.tgz#76903c3f8c4449bc9ac597acefa24dc5ad4cbea6"
+  integrity sha512-p+vNbgpLjif/+D+DwAZAbndtRrR0md0MwfmOVN9N+2RgyACMT+7tfaRnT+WDPkqnuVwleyuBIG2XBxKDme3hPA==
 
 prettier@^2.0.4:
   version "2.0.5"