Implement convertible for OpenStackClusterTemplateList

The conversion webhook fails to register without this.

Conflicts:
    api/v1alpha7/conversion.go

NOTE(stephenfin): Conflicts are due to absence of v1beta1 API on this
branch. We also need to `s/v1beta1/v1alpha7/` on the other files to
handle this.

(cherry picked from commit cb09d5f)

Author: mdbooth

api/v1alpha5/conversion.go

@@ -100,6 +100,18 @@ func (r *OpenStackClusterTemplate) ConvertFrom(srcRaw ctrlconversion.Hub) error
 	return utilconversion.MarshalData(src, r)
 }
 
+var _ ctrlconversion.Convertible = &OpenStackClusterTemplateList{}
+
+func (r *OpenStackClusterTemplateList) ConvertTo(dstRaw ctrlconversion.Hub) error {
+	dst := dstRaw.(*infrav1.OpenStackClusterTemplateList)
+	return Convert_v1alpha5_OpenStackClusterTemplateList_To_v1alpha7_OpenStackClusterTemplateList(r, dst, nil)
+}
+
+func (r *OpenStackClusterTemplateList) ConvertFrom(srcRaw ctrlconversion.Hub) error {
+	src := srcRaw.(*infrav1.OpenStackClusterTemplateList)
+	return Convert_v1alpha7_OpenStackClusterTemplateList_To_v1alpha5_OpenStackClusterTemplateList(src, r, nil)
+}
+
 var _ ctrlconversion.Convertible = &OpenStackMachine{}
 
 func (r *OpenStackMachine) ConvertTo(dstRaw ctrlconversion.Hub) error {

api/v1alpha6/conversion.go

@@ -230,6 +230,18 @@ func (r *OpenStackClusterTemplate) ConvertFrom(srcRaw ctrlconversion.Hub) error
 	)
 }
 
+var _ ctrlconversion.Convertible = &OpenStackClusterTemplateList{}
+
+func (r *OpenStackClusterTemplateList) ConvertTo(dstRaw ctrlconversion.Hub) error {
+	dst := dstRaw.(*infrav1.OpenStackClusterTemplateList)
+	return Convert_v1alpha6_OpenStackClusterTemplateList_To_v1alpha7_OpenStackClusterTemplateList(r, dst, nil)
+}
+
+func (r *OpenStackClusterTemplateList) ConvertFrom(srcRaw ctrlconversion.Hub) error {
+	src := srcRaw.(*infrav1.OpenStackClusterTemplateList)
+	return Convert_v1alpha7_OpenStackClusterTemplateList_To_v1alpha6_OpenStackClusterTemplateList(src, r, nil)
+}
+
 var _ ctrlconversion.Convertible = &OpenStackMachine{}
 
 var v1alpha6OpenStackMachineRestorer = conversion.RestorerFor[*OpenStackMachine]{