keeps: bump @airgap/beacon-sdk 4.6.0 → 4.8.1
The 4.6.0 bundle pins 4 dead Matrix relay nodes
(beacon-server-{1,2,3,4}.papers.tech) whose DNS no longer resolves,
causing requestPermissions() to hang on keep.kidlisp.com. 4.8.1 drops
those hosts and adds 8 working octez.io relay nodes.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>