Revert "chore: upgrade vitest to v4"

This reverts commit a551ae2.

Author: Belco90

package.json

@@ -48,7 +48,6 @@
 		"rule-doc-generator": "eslint-doc-generator",
 		"semantic-release": "semantic-release",
 		"test": "vitest run",
-		"test:dev": "vitest run --standalone",
 		"test:ci": "vitest run --coverage",
 		"test:watch": "vitest",
 		"type-check": "tsc --noEmit"
@@ -65,7 +64,7 @@
 		"@eslint/js": "^9.35.0",
 		"@types/node": "^22.9.3",
 		"@typescript-eslint/rule-tester": "^8.15.0",
-		"@vitest/coverage-v8": "^4.0.15",
+		"@vitest/coverage-v8": "^3.2.4",
 		"@vitest/eslint-plugin": "^1.3.16",
 		"del-cli": "^6.0.0",
 		"eslint": "^9.35.0",
@@ -86,7 +85,7 @@
 		"ts-node": "^10.9.2",
 		"typescript": "^5.7.2",
 		"typescript-eslint": "^8.15.0",
-		"vitest": "^4.0.15"
+		"vitest": "^3.2.4"
 	},
 	"peerDependencies": {
 		"eslint": "^8.57.0 || ^9.0.0"