build(deps-dev): update prettier to ^2.8.6

Author: renovate[bot]

package.json

@@ -87,7 +87,7 @@
     "postcss": "^8.4.5",
     "postcss-loader": "^6.2.1",
     "postcss-preset-env": "^6.7.0",
-    "prettier": "^2.3.2",
+    "prettier": "^2.8.6",
     "resolve-url-loader": "^4.0.0",
     "responsive-loader": "^3.0.0-2",
     "sass": "^1.43.4",

yarn.lock

@@ -4642,7 +4642,7 @@ __metadata:
     postcss: ^8.4.5
     postcss-loader: ^6.2.1
     postcss-preset-env: ^6.7.0
-    prettier: ^2.3.2
+    prettier: ^2.8.6
     resolve-url-loader: ^4.0.0
     responsive-loader: ^3.0.0-2
     sass: ^1.43.4
@@ -14802,12 +14802,12 @@ fsevents@^1.2.7:
   languageName: node
   linkType: hard
 
-"prettier@npm:^2.3.2":
-  version: 2.3.2
-  resolution: "prettier@npm:2.3.2"
+"prettier@npm:^2.8.6":
+  version: 2.8.6
+  resolution: "prettier@npm:2.8.6"
   bin:
     prettier: bin-prettier.js
-  checksum: 17ce5784ac67621c292df58e2da60b2ee150c2d6aebea22a6ad9e52fcd6a5e66c349d0a8436ea3bd8ff9d778920a5f68000d7625b74f43558718a49755aa5259
+  checksum: 8ac94fa67aec0e65743ea15ebf954ef2f1e52638abd129dc04e8b49e8bb3224c0233c98df6b5c98efd31bd2a43866590486559438ee4ead09dc81be389068572
   languageName: node
   linkType: hard