Release 0.6.1

I believe this is all semver compat; we have a big change queued
up for the layer split work which should come after this.

Author: cgwalters

lib/Cargo.toml

@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 name = "ostree-ext"
 readme = "README.md"
 repository = "https://github.com/ostreedev/ostree-rs-ext"
-version = "0.6.0"
+version = "0.6.1"
 
 [dependencies]
 anyhow = "1.0"