Update sqlx requirement from 0.5.5 to 0.6.0

Updates the requirements on [sqlx](https://github.com/launchbadge/sqlx) to permit the latest version.
- [Release notes](https://github.com/launchbadge/sqlx/releases)
- [Changelog](https://github.com/launchbadge/sqlx/blob/main/CHANGELOG.md)
- [Commits](launchbadge/sqlx@v0.5.5...v0.6.0)

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

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

Cargo.toml

@@ -25,12 +25,12 @@ mysql = ["sqlx/mysql", "sqlx/json"]
 
 [dependencies]
 async-session = "3.0.0"
-sqlx = { version = "0.5.5", features = ["chrono"] }
+sqlx = { version = "0.6.0", features = ["chrono"] }
 async-std = { version = "1.9.0", optional = true }
 
 [dev-dependencies]
 async-std = { version = "1.9.0", features = ["attributes"] }
 
 [dev-dependencies.sqlx]
-version = "0.5.5"
+version = "0.6.0"
 features = ["chrono", "runtime-async-std-native-tls"]