fix: allow pre-releases of ESLint 9

Fixes #183

Author: voxpelli

package.json

@@ -71,7 +71,7 @@
         "warun": "^1.0.0"
     },
     "peerDependencies": {
-        "eslint": "^6.0.0 || ^7.0.0 || >=8.0.0"
+        "eslint": "^6.0.0 || ^7.0.0 || ^8.0.0 || >=9.0.0-0"
     },
     "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"