Bump rand from 0.10.0 to 0.10.1

Bumps [rand](https://github.com/rust-random/rand) from 0.10.0 to 0.10.1.
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md)
- [Commits](rust-random/rand@0.10.0...0.10.1)

---
updated-dependencies:
- dependency-name: rand
  dependency-version: 0.10.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -26,4 +26,4 @@ serde_json = "1.0.149"
 [dev-dependencies]
 # reqwest doesn't like http 1.x yet
 http = "1"
-rand = "0.10.0"
+rand = "0.10.1"