fix typo

Author: rdy

package.json

@@ -36,7 +36,7 @@
     "typescript": "^3.6.4"
   },
   "peerDependencies": {
-    "eslint": "^3.17.0 || ^4 || ^5 | ^6"
+    "eslint": "^3.17.0 || ^4 || ^5 || ^6"
   },
   "keywords": [
     "eslint",