Update substrait requirement from 0.45 to 0.46

Updates the requirements on [substrait](https://github.com/substrait-io/substrait-rs) to permit the latest version.
- [Release notes](https://github.com/substrait-io/substrait-rs/releases)
- [Changelog](https://github.com/substrait-io/substrait-rs/blob/main/CHANGELOG.md)
- [Commits](substrait-io/substrait-rs@v0.45.0...v0.46.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

datafusion/substrait/Cargo.toml

@@ -41,7 +41,7 @@ object_store = { workspace = true }
 pbjson-types = "0.7"
 # TODO use workspace version
 prost = "0.13"
-substrait = { version = "0.45", features = ["serde"] }
+substrait = { version = "0.46", features = ["serde"] }
 url = { workspace = true }
 
 [dev-dependencies]