Update dependency prettier to v2.8.8

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": "2.8.7",
+    "prettier": "2.8.8",
     "qunit": "2.19.4",
     "qunit-dom": "2.0.0",
     "release-it": "15.10.1",

yarn.lock

@@ -9554,10 +9554,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-[email protected].7, prettier@^2.5.1:
-  version "2.8.7"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.7.tgz#bb79fc8729308549d28fe3a98fce73d2c0656450"
-  integrity sha512-yPngTo3aXUUmyuTjeTUT75txrf+aMh9FiD7q9ZE/i6r0bPb22g4FsE6Y338PQX1bmfy08i9QQCB7/rcUAVntfw==
+[email protected].8, prettier@^2.5.1:
+  version "2.8.8"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.8.tgz#e8c5d7e98a4305ffe3de2e1fc4aca1a71c28b1da"
+  integrity sha512-tdN8qQGvNjw4CHbY+XXk0JgCXn9QiF21a55rBe5LJAU+kDyC4WQn4+awm2Xfk2lQMk5fKup9XgzTZtGkjBdP9Q==
 
 printf@^0.6.1:
   version "0.6.1"