v0.3.0

What's Changed

• Update to arti-client 0.43.0 — bumped arti-client, tor-cell, tor-hsservice, tor-proto, tor-rtcompat, tor-cert to 0.43.0 and safelog to 0.8.2.
• API fix for arti 0.43 — create_bootstrapped() now returns Arc<TorClient>; setup_tor_client updated accordingly.
• Builds on stable Rust — removed the unused #![feature(addr_parse_ascii)] nightly gate.
• Dependabot security bumps: openssl 0.10.80, rand 0.8.6, keccak 0.1.6.

Full Changelog: v0.2.3...v0.3.0