Bump prettier from 2.2.1 to 2.8.4

Bumps [prettier](https://github.com/prettier/prettier) from 2.2.1 to 2.8.4.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/prettier@2.2.1...2.8.4)

---
updated-dependencies:
- dependency-name: prettier
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -36,7 +36,7 @@
     "jest": "^26.6.3",
     "jest-circus": "^26.6.3",
     "js-yaml": "^4.0.0",
-    "prettier": "2.2.1",
+    "prettier": "2.8.4",
     "ts-jest": "^26.4.4",
     "typescript": "^4.1.3"
   }

yarn.lock

@@ -3721,10 +3721,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@2.2.1, prettier@>=1.12.0:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.2.1.tgz#795a1a78dd52f073da0cd42b21f9c91381923ff5"
-  integrity sha512-PqyhM2yCjg/oKkFPtTGUojv7gnZAoG80ttl45O6x2Ug/rMJw4wcc9k6aaf2hibP7BGVCCM33gZoGjyvt9mm16Q==
+prettier@2.8.4, prettier@>=1.12.0:
+  version "2.8.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.4.tgz#34dd2595629bfbb79d344ac4a91ff948694463c3"
+  integrity sha512-vIS4Rlc2FNh0BySk3Wkd6xmwxB0FpOndW5fisM5H8hsZSxU2VWVB5CWIkIjWvrHjIhxk2g3bfMKM87zNTrZddw==
 
 pretty-format@^26.0.0, pretty-format@^26.6.2:
   version "26.6.2"