v0.5.0 - Client as a Service

What's Changed

• Client as tower::Service by @alexrudy in #88
• Support adding layers to client builder by @alexrudy in #89
• Bump clap from 4.5.7 to 4.5.8 by @dependabot in #90
• Bump hyper from 1.3.1 to 1.4.0 by @dependabot in #91

Full Changelog: v0.4.4...v0.5.0