Update dependency prettier to v2.8.7

Author: renovate[bot]

package.json

@@ -50,7 +50,7 @@
     "gh-pages": "3.2.3",
     "lint-staged": "10.5.4",
     "node-html-to-image": "3.2.0",
-    "prettier": "2.5.0"
+    "prettier": "2.8.7"
   },
   "keywords": [
     "gatsby"

yarn.lock

@@ -10581,10 +10581,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@2.5.0:
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.5.0.tgz#a6370e2d4594e093270419d9cc47f7670488f893"
-  integrity sha512-FM/zAKgWTxj40rH03VxzIPdXmj39SwSjwG0heUcNFwI+EMZJnY93yAiKXM3dObIKAM5TA88werc8T/EwhB45eg==
+prettier@2.8.7:
+  version "2.8.7"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.7.tgz#bb79fc8729308549d28fe3a98fce73d2c0656450"
+  integrity sha512-yPngTo3aXUUmyuTjeTUT75txrf+aMh9FiD7q9ZE/i6r0bPb22g4FsE6Y338PQX1bmfy08i9QQCB7/rcUAVntfw==
 
 pretty-bytes@^5.1.0, pretty-bytes@^5.3.0, pretty-bytes@^5.4.1:
   version "5.6.0"