chore(deps): update pnpm to v9.15.0

##### [v9.15.0](pnpm/pnpm@v9.14.4...v9.15.0)

Author: renovate[bot]

package.json

@@ -2,7 +2,7 @@
   "name": "eslint-plugin-mmkal",
   "version": "0.10.1",
   "description": "My eslint plugin with rules I find good. If you aren't me you probably shouldn't use this.",
-  "packageManager": "pnpm@9.14.4",
+  "packageManager": "pnpm@9.15.0",
   "files": [
     "README.md",
     "src/**",