zbus 3.11.0

• ConnectionBuilder::build shouldn't assume executor ticking. This fixes a deadlock when internal
  executor is disabled and interface is added to the builder.
• Don't panic in proxy builder. Return an error instead.
• Some optimizations in handshake code.
• Error out on invalid UTF-8 in the cookie auth data.
• Add Error:MissingParameter variant.
• Implement Clone for InterfaceRef.
• Add SignalStream::name getter.
• SignalStream's inner lifetime need to be tied to that of proxy's inner lifetime, not the proxy
  itself. In case of macros, we can declare it as '`static'.
• Some fixes to docs.
• Dependency changes:
  • Enable io feature of futures-util if async-io is enabled.
  • Add optional dep on async-fs.
  • update nix to 0.26.