feat(stackable-versioned): Use proper JSONPath syntax

Author: Techassi

crates/stackable-versioned-macros/src/codegen/container/struct/conversion.rs

@@ -74,7 +74,7 @@ impl Struct {
                         <#for_module_ident::#spec_struct_ident as #versioned_path::TrackingFrom<_, _>>::tracking_from(
                             #from_struct_parameter_ident.spec,
                             &mut status,
-                            "",
+                            "$",
                         );
 
                     // Construct the final object by copying over the metadata, setting the status and

crates/stackable-versioned-macros/tests/snapshots/stackable_versioned_macros__snapshots__pass@conversion_tracking.rs.snap

@@ -171,8 +171,5 @@ pub struct UnknownDesiredApiVersionError {
 }
 
 pub fn jthong_path(parent: &str, child: &str) -> String {
-    match parent.is_empty() {
-        true => child.to_owned(),
-        false => format!("{parent}.{child}"),
-    }
+    format!("{parent}.{child}")
 }