Bump paste from 1.0.14 to 1.0.15 in /lang/rust (#2895)

Bumps [paste](https://github.com/dtolnay/paste) from 1.0.14 to 1.0.15.
- [Release notes](https://github.com/dtolnay/paste/releases)
- [Commits](dtolnay/paste@1.0.14...1.0.15)

---
updated-dependencies:
- dependency-name: paste
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

lang/rust/avro/Cargo.toml

@@ -90,7 +90,7 @@ md-5 = { default-features = false, version = "0.10.6" }
 pretty_assertions = { default-features = false, version = "1.4.0", features = ["std"] }
 serial_test = "3.1.1"
 sha2 = { default-features = false, version = "0.10.8" }
-paste = { default-features = false, version = "1.0.14" }
+paste = { default-features = false, version = "1.0.15" }
 rstest = { default-features = false, version = "0.19.0" }
 
 [package.metadata.docs.rs]