Update dependency prettier to v2.8.4

Author: renovate[bot]

package.json

@@ -41,7 +41,7 @@
 		"husky": "7.0.4",
 		"js-base64": "3.7.5",
 		"mocha": "9.2.2",
-		"prettier": "2.8.3",
+		"prettier": "2.8.4",
 		"prettier-plugin-solidity": "1.1.2",
 		"rimraf": "3.0.2",
 		"solhint": "3.3.8",

yarn.lock

@@ -7343,10 +7343,10 @@ [email protected]:
     semver "^7.3.8"
     solidity-comments-extractor "^0.0.7"
 
-[email protected].3:
-  version "2.8.3"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.3.tgz#ab697b1d3dd46fb4626fbe2f543afe0cc98d8632"
-  integrity sha512-tJ/oJ4amDihPoufT5sM0Z1SKEuKay8LfVAMlbbhnnkvt6BUserZylqo2PN+p9KeljLr0OHa2rXHU1T8reeoTrw==
+[email protected].4:
+  version "2.8.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.4.tgz#34dd2595629bfbb79d344ac4a91ff948694463c3"
+  integrity sha512-vIS4Rlc2FNh0BySk3Wkd6xmwxB0FpOndW5fisM5H8hsZSxU2VWVB5CWIkIjWvrHjIhxk2g3bfMKM87zNTrZddw==
 
 prettier@^1.14.3:
   version "1.19.1"