fix(worker): return null for shouldTransformCachedModule (#12797)

Author: bluwy

packages/vite/src/node/plugins/reporter.ts

@@ -91,6 +91,10 @@ export function buildReporterPlugin(config: ResolvedConfig): Plugin {
       startTime = Date.now()
     },
 
+    buildStart() {
+      transformedCount = 0
+    },
+
     buildEnd() {
       if (shouldLogInfo) {
         if (tty) {

packages/vite/src/node/plugins/worker.ts

@@ -240,11 +240,12 @@ export function webWorkerPlugin(config: ResolvedConfig): Plugin {
       }
     },
 
+    // @ts-expect-error return void to fallback to other plugins, even though
+    // the types doesn't allow it. https://github.com/rollup/rollup/pull/4932
     shouldTransformCachedModule({ id }) {
       if (isBuild && isWorkerQueryId(id) && config.build.watch) {
         return true
       }
-      return false
     },
 
     async transform(raw, id, options) {