build(deps): bump rand from 0.7.3 to 0.8.5 (#97)

Bumps [rand](https://github.com/rust-random/rand) from 0.7.3 to 0.8.5.
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md)
- [Commits](rust-random/rand@0.7.3...0.8.5)

---
updated-dependencies:
- dependency-name: rand
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Cargo.toml

@@ -32,7 +32,7 @@ default = ["mimalloc"]
 
 [dependencies]
 tokio = { version = "1.23", features = ["macros", "rt", "rt-multi-thread", "sync"] }
-rand = "0.7"
+rand = "0.8"
 pyo3 = { version = "~0.17.3", features = ["extension-module", "abi3", "abi3-py37"] }
 datafusion = { version = "^15.0.0", features = ["pyarrow", "avro"] }
 datafusion-expr = { version = "^15.0.0" }