chore(ci): revert Yarn v4 to Yarn Classic in pre-commit checks (#4876)

Author: philprime

Makefile

@@ -11,8 +11,6 @@ init:
 
 	# The node version manager is optional, so we don't fail if it's not installed.
 	if [ -n "$NVM_DIR" ] && [ -d "$NVM_DIR" ]; then nvm use; fi
-	# The corepack is optional, so we don't fail if it's not installed.
-	if ! command -v corepack > /dev/null; then corepack enable; fi
 
 	yarn install
 

package.json

@@ -2,8 +2,8 @@
   "name": "placeholder_package",
   "description": "Used to manage npm dependencies in pre-commit",
   "version": "0.0.0",
-  "packageManager": "yarn@4.6.0",
   "devDependencies": {
     "prettier": "3.5.0"
-  }
+  },
+  "packageManager": "yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
 }

yarn.lock

@@ -1,23 +1,8 @@
-# This file is generated by running "yarn install" inside your project.
-# Manual changes might be lost - proceed with caution!
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
 
-__metadata:
-  version: 8
-  cacheKey: 10c0
 
-"placeholder_package@workspace:.":
-  version: 0.0.0-use.local
-  resolution: "placeholder_package@workspace:."
-  dependencies:
-    prettier: "npm:3.5.0"
-  languageName: unknown
-  linkType: soft
-
-"prettier@npm:3.5.0":
-  version: 3.5.0
-  resolution: "prettier@npm:3.5.0"
-  bin:
-    prettier: bin/prettier.cjs
-  checksum: 10c0/6c355d74c377f5622953229d92477e8b9779162e848db90fd7e06c431deb73585d31fafc4516cf5868917825b97b9ec7c87c8d8b8e03ccd9fc9c0b7699d1a650
-  languageName: node
-  linkType: hard
+prettier@3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.5.0.tgz#50325a28887c6dfdf2ca3f8eaba02b66a8429ca7"
+  integrity sha512-quyMrVt6svPS7CjQ9gKb3GLEX/rl3BCL2oa/QkNcXv4YNVBC9olt3s+H7ukto06q7B1Qz46PbrKLO34PR6vXcA==