chore(deps): update pnpm to v9.15.6 (#56)

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

Author: renovate[bot]

package.json

@@ -4,7 +4,7 @@
     "author": "Samuel Alev <samuel.alev@protonmail.com>",
     "description": "GitHub Action to deploy Frontify apps",
     "license": "MIT",
-    "packageManager": "pnpm@9.15.5+sha512.845196026aab1cc3f098a0474b64dfbab2afe7a1b4e91dd86895d8e4aa32a7a6d03049e2d0ad770bbe4de023a7122fb68c1a1d6e0d033c7076085f9d5d4800d4",
+    "packageManager": "pnpm@9.15.6+sha512.139cab068fdf0b751268179ac5f909b5be72afb4a75c513d1905d151befc8977b593d3cf8671ed83d4d6637c5c94b98ffbce108125de4a5a27a31233601a99de",
     "repository": {
         "type": "git",
         "url": "git+https://github.com/SamuelAlev/frontify-app-deploy.git"