Update sqlparser requirement from 0.46 to 0.48

Updates the requirements on [sqlparser](https://github.com/sqlparser-rs/sqlparser-rs) to permit the latest version.
- [Changelog](https://github.com/sqlparser-rs/sqlparser-rs/blob/main/CHANGELOG.md)
- [Commits](apache/datafusion-sqlparser-rs@v0.46.0...v0.48.0)

---
updated-dependencies:
- dependency-name: sqlparser
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

convergence/Cargo.toml

@@ -13,7 +13,7 @@ tokio-util = { version = "0.7", features = [ "codec" ] }
 thiserror = "1"
 bytes = "1"
 futures = "0.3"
-sqlparser = "0.46"
+sqlparser = "0.48"
 async-trait = "0.1"
 chrono = "0.4"