fix: unit test

Author: fangzhengjin

app/core/service/ProxyCacheService.ts

@@ -181,7 +181,7 @@ export class ProxyCacheService extends AbstractService {
     }
 
     // replace tarball url
-    const { status, data: { manifest } } = responseResult;
+    const { status, data: manifest } = responseResult;
     // sourceRegistry not found, check private package
     if (status === 404) {
       const { etag, data: manifest, blockReason } = fileType === DIST_NAMES.FULL_MANIFESTS ?
@@ -200,7 +200,7 @@ export class ProxyCacheService extends AbstractService {
       const hasPrivatePackage = etag && !blockReason;
 
       // pkg manifest
-      const versionMap = manifest?.versions || {};
+      const versionMap = manifest.versions || {};
       for (const key in versionMap) {
         const versionItem = versionMap[key];
         if (versionItem?.dist?.tarball) {
@@ -215,7 +215,7 @@ export class ProxyCacheService extends AbstractService {
             versionMap[key] = privateVersionMap[key];
           }
         }
-        if (manifest?.time) {
+        if (manifest.time) {
           const privateTimeMap = data?.time || {};
           for (const key in privateTimeMap) {
             if (!manifest.time[key]) {