Update pnpm to v9.15.9

Signed-off-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package.json

@@ -75,7 +75,7 @@
         "taze": "^18.4.0",
         "textlint": "^14.4.2"
     },
-    "packageManager": "[email protected].5",
+    "packageManager": "[email protected].9",
     "engines": {
         "node": ">=20"
     },