Update rand_distr requirement from 0.4.3 to 0.5.1

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](https://github.com/rust-random/rand_distr/compare/0.4.3...0.5.1)

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

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

Cargo.toml

@@ -84,7 +84,7 @@ test-log = "0.2.10"
 futures = "0.3.21"
 paste = "1.0.11"
 more-asserts = "0.3.1"
-rand_distr = "0.4.3"
+rand_distr = "0.5.1"
 time = { version = "0.3.10", features = ["serde-well-known", "macros"] }
 postcard = { version = "1.0.4", features = [
   "use-std",

stacker/Cargo.toml

@@ -11,7 +11,7 @@ description = "term hashmap used for indexing"
 murmurhash32 = "0.3"
 common = { version = "0.7", path = "../common/", package = "tantivy-common" }
 ahash = { version = "0.8.11", default-features = false, optional = true }
-rand_distr = "0.4.3"
+rand_distr = "0.5.1"
 
 
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