build(eslint): fix deprecated error in eslint.config.mts

```
  14:3  error  `includeIgnoreFile` is deprecated. Use the `includeIgnoreFile()` function exported by
`@eslint/config-helpers` instead (also available at `eslint/config`)  @typescript-eslint/no-deprecated
```

Author: remarkablemark

eslint.config.mts

@@ -1,6 +1,6 @@
 import { fileURLToPath } from 'node:url';
 
-import { includeIgnoreFile } from '@eslint/compat';
+import { includeIgnoreFile } from '@eslint/config-helpers';
 import eslint from '@eslint/js';
 import { defineConfig } from 'eslint/config';
 import prettier from 'eslint-plugin-prettier';

package-lock.json

@@ -49,6 +49,7 @@
     "@commitlint/cli": "21.0.0",
     "@commitlint/config-conventional": "21.0.0",
     "@eslint/compat": "2.1.0",
+    "@eslint/config-helpers": "0.6.0",
     "@eslint/js": "10.0.1",
     "@types/node": "25.6.2",
     "@types/react": "19.2.14",