Fix: failed to get package path (#9879)

* fix

* bump version

Author: wanlwanl

tools/js-sdk-release-tools/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@azure-tools/js-sdk-release-tools",
-  "version": "2.7.20",
+  "version": "2.7.21",
   "description": "",
   "files": [
     "dist"

tools/js-sdk-release-tools/src/llc/generateRLCInPipeline/generateRLCInPipeline.ts

@@ -77,7 +77,9 @@ export async function generateRLCInPipeline(options: {
                 logger.info(`Start to run command: '${scriptCommand}'`);
                 execSync(scriptCommand, {stdio: 'inherit'});
                 logger.info("Generated code by tsp-client successfully.");
-            } 
+            }
+            packagePath = generatedPackageDir;
+            relativePackagePath = path.relative(options.sdkRepo, packagePath);
         }
     } else {
         logger.info(`Start to generate SDK from '${options.readmeMd}'.`);