Update dependency prettier to v2.8.6

Author: renovate[bot]

package.json

@@ -69,7 +69,7 @@
     "eslint-plugin-prettier": "4.2.1",
     "eslint-plugin-qunit": "7.3.4",
     "loader.js": "4.7.0",
-    "prettier": "2.8.5",
+    "prettier": "2.8.6",
     "qunit": "2.19.4",
     "qunit-dom": "2.0.0",
     "release-it": "15.9.0",

yarn.lock

@@ -9551,10 +9551,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-[email protected].5, prettier@^2.5.1:
-  version "2.8.5"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.5.tgz#3dd8ae1ebddc4f6aa419c9b64d8c8319a7e0d982"
-  integrity sha512-3gzuxrHbKUePRBB4ZeU08VNkUcqEHaUaouNt0m7LGP4Hti/NuB07C7PPTM/LkWqXoJYJn2McEo5+kxPNrtQkLQ==
+[email protected].6, prettier@^2.5.1:
+  version "2.8.6"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.6.tgz#5c174b29befd507f14b83e3c19f83fdc0e974b71"
+  integrity sha512-mtuzdiBbHwPEgl7NxWlqOkithPyp4VN93V7VeHVWBF+ad3I5avc0RVDT4oImXQy9H/AqxA2NSQH8pSxHW6FYbQ==
 
 printf@^0.6.1:
   version "0.6.1"