Release v0.16.0

v0.16.0

• Update all crate versions, and disable some unused crate features
• Add FreeBSD 12.3 to the test matrix
• Move rc_script functionality to its own file
• Move bcrypt command functionality to its own file
• Remove mime crate dependency
• Replace dev-dependency [lazy-static] with once_cell
• Bump MSRV to 1.64.0
• Move to official prometheus-client Rust crate
• Update to clap 4.2
• Change exposition format to OpenMetrics 1.0.0
• Mutexes now use parking_lot
• Switch from actix-web to axum