Consider upgrading Rust `turso` dependency from 0.4.4 to 0.5.3

[alextbok]

AgentFS currently pins the Rust turso dependency to 0.4.4 in:

• cli/Cargo.toml
• sdk/rust/Cargo.toml

I looked into upgrading it to 0.5.3 and wanted to share the results in case maintainers want to bump it.

What I checked:

• cargo check --manifest-path sdk/rust/Cargo.toml
• cargo check --manifest-path cli/Cargo.toml
• cargo check --manifest-path sandbox/Cargo.toml
• cargo test --manifest-path sdk/rust/Cargo.toml
• cargo test --manifest-path cli/Cargo.toml

Result:

• The upgrade from turso 0.4.4 to 0.5.3 appeared to work without any agentfs code changes.
• The Rust SDK and CLI tests passed in my local verification.

I also did not find an existing issue or PR documenting a blocker for turso 0.5.x.