feat(harmony): enhance PhysicalHost with builder methods and update dependencies

- Added builder methods to `PhysicalHost` for configuring CPU, memory size, storage, MAC address, labels, and management interface.
- Updated the edition of various Cargo.toml files to 2024.
- Implemented workspace inheritance for version, readme, and license fields in Cargo.toml files.

harmony-rs/examples/opnsense/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "example-opnsense"
+edition = "2024"
+version.workspace = true
+readme.workspace = true
+license.workspace = true
+publish = false
+
+[dependencies]
+harmony = { path = "../../harmony" }
+harmony_tui = { path = "../../harmony_tui" }
+harmony_types = { path = "../../harmony_types" }
+cidr = { workspace = true }
+tokio = { workspace = true }
+harmony_macros = { path = "../../harmony_macros" }
+log = { workspace = true }
+env_logger = { workspace = true }
+url = { workspace = true }