feat(cli): add test clearCache option

packages/vant-cli/src/commands/jest.ts

@@ -13,7 +13,8 @@ export function test(command: any) {
   const config = {
     rootDir: ROOT,
     watch: command.watch,
-    config: JEST_CONFIG_FILE
+    config: JEST_CONFIG_FILE,
+    clearCache: command.clearCache
   } as any;
 
   runCLI(config, [ROOT]);

packages/vant-cli/src/index.ts

@@ -31,6 +31,7 @@ command('commit-lint').action(commitLint);
 
 command('test')
   .option('--watch')
+  .option('--clearCache')
   .action(test);
 
 parse(process.argv);