Update pnpm to v10.8.0 (#1369)

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

Author: renovate[bot]

package.json

@@ -106,7 +106,7 @@
     "ember-source": ">= 4.0.0",
     "qunit": "*"
   },
-  "packageManager": "pnpm@10.7.1",
+  "packageManager": "pnpm@10.8.0",
   "engines": {
     "node": ">= 18"
   },