Update dependency prettier to v2.8.4

Author: renovate[bot]

package.json

@@ -61,7 +61,7 @@
     "chai": "^4.3.4",
     "fixturez": "^1.0.1",
     "jest": "^27.4.4",
-    "prettier": "2.5.1",
+    "prettier": "2.8.4",
     "ts-jest": "^27.1.4",
     "ts-node": "^8.6.2",
     "tsc-files": "^1.1.3",

yarn.lock

@@ -3530,10 +3530,10 @@ prepend-http@^2.0.0:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
   integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
 
-prettier@2.5.1:
-  version "2.5.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.5.1.tgz#fff75fa9d519c54cf0fce328c1017d94546bc56a"
-  integrity sha512-vBZcPRUR5MZJwoyi3ZoyQlc1rXeEck8KgeC9AwwOn+exuxLxq5toTRDTSaVrXHxelDMHy9zlicw8u66yxoSUFg==
+prettier@2.8.4:
+  version "2.8.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.4.tgz#34dd2595629bfbb79d344ac4a91ff948694463c3"
+  integrity sha512-vIS4Rlc2FNh0BySk3Wkd6xmwxB0FpOndW5fisM5H8hsZSxU2VWVB5CWIkIjWvrHjIhxk2g3bfMKM87zNTrZddw==
 
 pretty-format@^27.0.0, pretty-format@^27.4.2:
   version "27.4.2"