chore: remove [patch.crates-io] and publish to crates.io

[yeongseon]

Summary

Remove the [patch.crates-io] section from Cargo.toml and publish sea-orm-cubrid to crates.io.

Current State

Cargo.toml has:

[patch.crates-io]
cubrid-protocol = { git = "https://github.com/cubrid-labs/cubrid-rs", package = "cubrid-protocol" }
cubrid-client = { git = "https://github.com/cubrid-labs/cubrid-rs", package = "cubrid-client" }
cubrid-tokio = { git = "https://github.com/cubrid-labs/cubrid-rs", package = "cubrid-tokio" }

Prerequisites

• cubrid-labs/cubrid-rs crates published to crates.io first (see chore: publish crates to crates.io cubrid-rs#1)
• crates.io API token configured

Steps

1. Remove [patch.crates-io] section from Cargo.toml
2. Run cargo test to verify it builds against crates.io versions
3. cargo publish