[auto] Update pkDex to 1.6.5

[DragoniteBot]

GH Release: https://github.com/Insektaure/pkDex/releases/tag/v1.6.5

Changes:

New Features:
- Bulk Actions (X button): Mark or clear capture status for all Pokémon in a region at once (e.g. mark all as Caught, clear all Shiny). Includes confirmation dialog before applying.
- Multi-Select Mode (ZL button): Toggle multi-select mode, then use A to pick individual Pokémon. Press Y to apply status changes to all selected at once. Selection is preserved between status changes, allowing multiple statuses to be applied without re-selecting.
- Multi-Select Header: A sticky header displays when in multi-select mode, showing the current selection count.

Improvements:
- Shortened hint bar labels to fit all button hints on screen.
- Optimized bulk operations to read/write tracker files only once regardless of Pokémon count.

[github-actions]

Manifest Check: pkDex

✅ File layout looks good: Manifest matches the previous version