chore: Use snafu for ParseResourceVersionError

Author: sbernauer

Cargo.lock

@@ -26,7 +26,7 @@ proc-macro = true
 
 [features]
 full = ["k8s", "flux-converter"]
-k8s = ["dep:kube", "dep:k8s-openapi", "dep:snafu"]
+k8s = ["dep:kube", "dep:k8s-openapi"]
 flux-converter = ["k8s"]
 
 [dependencies]
@@ -38,7 +38,6 @@ itertools.workspace = true
 k8s-openapi = { workspace = true, optional = true }
 kube = { workspace = true, optional = true }
 proc-macro2.workspace = true
-snafu = { workspace = true, optional = true }
 syn.workspace = true
 quote.workspace = true