Update rust-lzma requirement from 0.5 to 0.6

Updates the requirements on [rust-lzma](https://github.com/fpgaminer/rust-lzma) to permit the latest version.
- [Commits](https://github.com/fpgaminer/rust-lzma/commits/v0.6.0)

---
updated-dependencies:
- dependency-name: rust-lzma
  dependency-type: direct:production
...

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

Cargo.toml

@@ -18,7 +18,7 @@ log = { version = "0.4.17", optional = true }
 env_logger = { version = "0.10.0", optional = true }
 
 [dev-dependencies]
-rust-lzma = "0.5"
+rust-lzma = "0.6"
 seq-macro = "0.3"
 
 [features]