fix: standardize pnpm to 10.32.1 to match other headlamp plugins

Updates packageManager field from pnpm@9.15.4 to pnpm@10.32.1 to ensure
consistency across all headlamp plugins (argocd-plugin, polaris-plugin,
sealed-secrets-plugin all use 10.32.1).

Resolves packageManager version mismatch that could cause lockfile sync issues.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

package.json

@@ -50,7 +50,7 @@
     "lodash": ">=4.18.0",
     "elliptic": ">=6.6.1"
   },
-  "packageManager": "pnpm@9.15.4",
+  "packageManager": "pnpm@10.32.1",
   "pnpm": {
     "onlyBuiltDependencies": [
       "@swc/core",