Update lz4_flex requirement from 0.13 to 0.14

Updates the requirements on [lz4_flex](https://github.com/pseitz/lz4_flex) to permit the latest version.
- [Release notes](https://github.com/pseitz/lz4_flex/releases)
- [Changelog](https://github.com/PSeitz/lz4_flex/blob/main/CHANGELOG.md)
- [Commits](PSeitz/lz4_flex@0.13.0...0.14.0)

---
updated-dependencies:
- dependency-name: lz4_flex
  dependency-version: 0.14.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Cargo.toml

@@ -27,7 +27,7 @@ regex = { version = "1.5.5", default-features = false, features = [
 aho-corasick = "1.0"
 tantivy-fst = "0.5"
 memmap2 = { version = "0.9.0", optional = true }
-lz4_flex = { version = "0.13", default-features = false, optional = true }
+lz4_flex = { version = "0.14", default-features = false, optional = true }
 zstd = { version = "0.13", optional = true, default-features = false }
 tempfile = { version = "3.12.0", optional = true }
 log = "0.4.16"