coremodels: Update to latest Thema with generics (#56602)

* Update thema to latest

* Deal with s/Library/*Runtime/

* Commit new, working results of codegen

pkg/codegen/tmpl/plugin_registry.tmpl

@@ -10,22 +10,22 @@ import (
 	"github.com/grafana/thema"
 )
 
-func makeTreeOrPanic(path string, pkgname string, lib thema.Library) *pfs.Tree {
+func makeTreeOrPanic(path string, pkgname string, rt *thema.Runtime) *pfs.Tree {
   sub, err := fs.Sub(grafana.CueSchemaFS, path)
   if err != nil {
     panic("could not create fs sub to " + path)
   }
-  tree, err := pfs.ParsePluginFS(sub, lib)
+  tree, err := pfs.ParsePluginFS(sub, rt)
   if err != nil {
     panic(fmt.Sprintf("error parsing plugin metadata for %s: %s", pkgname, err))
   }
   return tree
 }
 
-func coreTreeList(lib thema.Library) pfs.TreeList{
+func coreTreeList(rt *thema.Runtime) pfs.TreeList{
   return pfs.TreeList{
     {{- range .Plugins }}
-    makeTreeOrPanic("{{ .Path }}", "{{ .PkgName }}", lib),
+    makeTreeOrPanic("{{ .Path }}", "{{ .PkgName }}", rt),
     {{- end }}
   }
 }