Updated skywalking dependency

[jmjoy]

This pull request includes updates to various dependencies across multiple Cargo.toml files. The changes primarily involve updating the versions of several dependencies to their latest versions.

Dependency updates:

• Updated hostname from 0.4.0 to 0.4.1 in Cargo.toml
• Updated once_cell from 1.21.1 to 1.21.3 in Cargo.toml and worker/Cargo.toml [1] [2]
• Updated phper from 0.15.1 to 0.16.0 in Cargo.toml
• Updated skywalking from 0.8.0 to 0.9.0 in Cargo.toml and worker/Cargo.toml [1] [2]
• Updated tokio from 1.44.1 to 1.44.2 in Cargo.toml and worker/Cargo.toml [1] [2]
• Updated tonic from 0.8.3 to 0.12.0 in Cargo.toml and worker/Cargo.toml [1] [2]
• Updated clap from 4.5.32 to 4.5.36 in scripts/Cargo.toml and worker/Cargo.toml [1] [2]
• Updated phper-build from 0.15.0 to 0.15.1 in Cargo.toml
• Updated axum from 0.8.1 to 0.8.3 in Cargo.toml