chore: Move CRD test case to run via trybuild

Author: Techassi

crates/stackable-versioned-macros/tests/crd.rs renamed to crates/stackable-versioned-macros/tests/good/crd.rs

@@ -1,16 +1,10 @@
-#[cfg(feature = "k8s")]
 use schemars::JsonSchema;
-
-#[cfg(feature = "k8s")]
 use serde::{Deserialize, Serialize};
 
-#[cfg(feature = "k8s")]
 use stackable_versioned_macros::versioned;
 
-#[cfg(feature = "k8s")]
 #[allow(deprecated)]
-#[test]
-fn crd() {
+fn main() {
     #[versioned(
         version(name = "v1alpha1"),
         version(name = "v1beta1"),

crates/stackable-versioned-macros/tests/trybuild.rs

@@ -16,6 +16,9 @@
 //     mod attributes_enum;
 //     mod attributes_struct;
 //     mod basic;
+
+//     #[cfg(feature = "k8s")]
+//     mod crd;
 //     mod deprecate;
 //     mod rename;
 //     mod skip_from_version;