chore: update dependencies and bump to v0.3.4

- Update saorsa-core, saorsa-pqc, saorsa-rsps to latest
- Patch version bump for dependency updates

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: dirvine

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "saorsa-node"
-version = "0.3.1"
+version = "0.3.4"
 edition = "2021"
 authors = ["David Irvine <david.irvine@maidsafe.net>"]
 description = "Pure quantum-proof network node for the Saorsa decentralized network"