v0.4.2

Rust runtime release. See MIGRATION.md for Bash → Rust notes.

Install pin:

VAULTED_AGENT_VERSION=v0.4.2 curl -fsSL https://stephens.page/vaulted-agent/install.sh | bash

What's Changed

• Document how to refresh the hosted bootstrap installer by @JacobStephens2 in #40
• docs: pin README latest links to v0.4.1 by @JacobStephens2 in #41
• Add 1Password item selection to va refresh by @JacobStephens2 in #42

Full Changelog: v0.4.1...v0.4.2