Update Rust crate diesel to 2.3.8

[oxide-renovate]

This PR contains the following updates:

Package	Type	Update	Change
diesel (source)	workspace.dependencies	patch	2.3.7 → 2.3.8

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Release Notes

diesel-rs/diesel (diesel)

v2.3.8

Compare Source

• Added support for libsqlite3-sys 0.37.0
• Raise a compile-time error when mixing aggregate and non-aggregate expressions in an ORDER BY clause without a GROUP BY clause
• Calling .count() or .select(aggregate_expr) on a query that already has a non-aggregate .order_by() clause now raises a compile-time error instead of generating invalid SQL that would be rejected by the database at runtime (fixes #​3815)
• Added documentation for migration transaction behaviour at the crate root
• Improved compile time error messages for #[derive(AsChangeset)]
• Allow to use generic types in infix_operator!()
• Fixes for several instances of unsound, unspecified or otherwise dangerous behaviour:
  • Unsound string construction in SqliteValue::read_text/FromSql<Text, Sqlite> for String
  • Invalid alignment for over aligned data in SqliteConnection::register_function for aggregate functions
  • Potential memory leaks in SqliteConnection::register_function
  • Access to padding bytes while serializing Date/time types in the Mysql backend
  • SQL Option Injection in PostgreSQL COPY FROM/TO
  • Unspecified pointer cast in Debug/Display implementation of batch INSERT statements for SQLite
  • Invalid call order of SQLite API functions in SqliteValue::read_text/FromSql<Text, Sqlite> for String/SqliteValue::read_blob()/FromSql<Binary, Sqlite> for Vec<u8>
  • Potential unsound pointer access for FromSql<Binary, _> for Vec<u8> and FromSql<Text, _> for String for third party backends (requires changes to the third party backend as well)

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