fix(compiler-sfc): fix treeshaking of namespace import when used in template

fix #5209

packages/compiler-sfc/src/compileScript.ts

@@ -1011,10 +1011,13 @@ export function compileScript(
       for (let i = 0; i < node.specifiers.length; i++) {
         const specifier = node.specifiers[i]
         const local = specifier.local.name
-        const imported =
+        let imported =
           specifier.type === 'ImportSpecifier' &&
           specifier.imported.type === 'Identifier' &&
           specifier.imported.name
+        if (specifier.type === 'ImportNamespaceSpecifier') {
+          imported = '*'
+        }
         const source = node.source.value
         const existing = userImports[local]
         if (
@@ -1257,7 +1260,9 @@ export function compileScript(
   )) {
     if (isType) continue
     bindingMetadata[key] =
-      (imported === 'default' && source.endsWith('.vue')) || source === 'vue'
+      imported === '*' ||
+      (imported === 'default' && source.endsWith('.vue')) ||
+      source === 'vue'
         ? BindingTypes.SETUP_CONST
         : BindingTypes.SETUP_MAYBE_REF
   }