chore(deps): bump pnpm to v8.6.9

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -4,7 +4,7 @@
   "version": "0.0.0-development",
   "description": "Package-based monorepo for @openinf/gh-file-importer and friends",
   "workspaces": ["packages/*"],
-  "packageManager": "[email protected].3",
+  "packageManager": "[email protected].9",
   "license": "MIT OR Apache-2.0",
   "author": "The OpenINF Authors",
   "devDependencies": {