chore!: update to winnow 0.6

This upgrade is breaking enough and slipped through the radar the last time,
leading to a now-yanked release that breaks `gix` v0.58.

Author: Byron

gix-actor/Cargo.toml

@@ -12,6 +12,7 @@ rust-version = "1.65"
 [lib]
 doctest = false
 
+
 [features]
 ## Data structures implement `serde::Serialize` and `serde::Deserialize`.
 serde = ["dep:serde", "bstr/serde", "gix-date/serde"]