Update rand_distr requirement from 0.5 to 0.6

Updates the requirements on [rand_distr](https://github.com/rust-random/rand_distr) to permit the latest version.
- [Release notes](https://github.com/rust-random/rand_distr/releases)
- [Changelog](https://github.com/rust-random/rand_distr/blob/master/CHANGELOG.md)
- [Commits](rust-random/rand_distr@0.5.0...0.6.0)

---
updated-dependencies:
- dependency-name: rand_distr
  dependency-version: 0.6.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Cargo.toml

@@ -18,7 +18,7 @@ crc32c = "0.6.8"
 log = "0.4"
 memmap2 = "0.9.4"
 rand = "0.9"
-rand_distr = "0.5"
+rand_distr = "0.6"
 fs4 = "0.13.1"
 # fs4 depends on rustix, but pulling this dependency explicitly into the tree
 # to use direct functions on FreeBSD