[Pipeline] add parameter to skip changelog generation if needed (Azure#42220)

* add parameter to skip changelog generation if needed

* update

Author: msyyc

tools/azure-sdk-tools/packaging_tools/sdk_generator.py

@@ -368,7 +368,10 @@ def main(generate_input, generate_output):
 
                 changelog_generation_start_time = time.time()
                 try:
-                    md_output = execute_func_with_timeout(change_log_func)
+                    if data.get("enableChangelog", True):
+                        md_output = execute_func_with_timeout(change_log_func)
+                    else:
+                        md_output = "skip changelog generation"
                 except multiprocessing.TimeoutError:
                     md_output = "change log generation was timeout!!! You need to write it manually!!!"
                 except: