refactor(compiler-core): refactor isComponentTag method (#4934)

packages/compiler-core/src/transforms/transformElement.ts

@@ -891,7 +891,7 @@ function stringifyDynamicPropNames(props: string[]): string {
 }
 
 function isComponentTag(tag: string) {
-  return tag[0].toLowerCase() + tag.slice(1) === 'component'
+  return tag === 'component' || tag === 'Component'
 }
 
 function processInlineRef(