chore(deps): update pnpm to v10.20.0 (#700)

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

Author: renovate[bot]

package.json

@@ -16,7 +16,7 @@
     "node": ">=22",
     "pnpm": ">=10"
   },
-  "packageManager": "pnpm@10.19.0+sha512.c9fc7236e92adf5c8af42fd5bf1612df99c2ceb62f27047032f4720b33f8eacdde311865e91c411f2774f618d82f320808ecb51718bfa82c060c4ba7c76a32b8",
+  "packageManager": "pnpm@10.20.0+sha512.cf9998222162dd85864d0a8102e7892e7ba4ceadebbf5a31f9c2fce48dfce317a9c53b9f6464d1ef9042cba2e02ae02a9f7c143a2b438cd93c91840f0192b9dd",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/freeCodeCamp/ui.git"