fix(ci): correct SEA binary cache path to match build workflow

The build-sea.yml workflow caches `dist/sea/` but the CI workflow
was trying to restore `dist/`. This path mismatch caused the cache
to not be restored properly.

Changed cache path from:
  packages/node-sea-builder/dist/
To:
  packages/node-sea-builder/dist/sea/

This matches the cache path used in build-sea.yml line 464.

Author: jdalton

.github/workflows/ci.yml

@@ -114,7 +114,7 @@ jobs:
         id: sea-cache
         uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
         with:
-          path: packages/node-sea-builder/dist/
+          path: packages/node-sea-builder/dist/sea/
           key: node-sea-linux-x64-${{ steps.cache-keys.outputs.sea-hash }}
           restore-keys: node-sea-linux-x64-