fix: compatibility with prettier@3 without plugins (#564)

Author: auvred

.changeset/stale-guests-battle.md

@@ -0,0 +1,5 @@
+---
+"eslint-plugin-prettier": patch
+---
+
+fix: compatibility with prettier@3 without plugins

worker.js

@@ -48,7 +48,7 @@ runAsWorker(
         withNodeModules: false,
         ignorePath: '.prettierignore',
         plugins: /** @type {string[] | undefined} */ (
-          prettierRcOptions ? prettierRcOptions.plugins : null
+          prettierRcOptions ? prettierRcOptions.plugins : undefined
         ),
         ...eslintFileInfoOptions,
       },