Update substrait requirement from 0.50 to 0.51 (#13978)

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@v0.50.0...v0.51.0)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

datafusion/substrait/Cargo.toml

@@ -42,7 +42,7 @@ object_store = { workspace = true }
 pbjson-types = "0.7"
 # TODO use workspace version
 prost = "0.13"
-substrait = { version = "0.50", features = ["serde"] }
+substrait = { version = "0.51", features = ["serde"] }
 url = { workspace = true }
 
 [dev-dependencies]