mgmt, update codegen to 4.0.37 (#24032)

* upgrade codegen to 4.0.37

* update script to avoid deleting hand-written samples

eng/mgmt/automation/generate.py

@@ -48,7 +48,11 @@ def generate(
         module,
     )
     shutil.rmtree(os.path.join(output_dir, 'src/main'), ignore_errors = True)
-    shutil.rmtree(os.path.join(output_dir, 'src/samples'), ignore_errors = True)
+    if os.path.exists(os.path.join(output_dir, 'src/samples/README.md')):
+        # samples contains hand-written code
+        shutil.rmtree(os.path.join(output_dir, 'src/samples/java', namespace.replace('.', '/'), 'generated'), ignore_errors = True)
+    else:
+        shutil.rmtree(os.path.join(output_dir, 'src/samples'), ignore_errors = True)
 
     if re.match(r'https?://', spec_root):
         readme = urllib.parse.urljoin(spec_root, readme)

eng/mgmt/automation/parameters.py

@@ -15,8 +15,8 @@
 MAVEN_URL = 'https://repo1.maven.org/maven2/{group_id}/{artifact_id}/{version}/{artifact_id}-{version}.jar'
 
 SDK_ROOT = '../../../'  # related to file dir
-AUTOREST_CORE_VERSION = '3.4.5'
-AUTOREST_JAVA = '@autorest/[email protected].36'
+AUTOREST_CORE_VERSION = '3.6.0'
+AUTOREST_JAVA = '@autorest/[email protected].37'
 DEFAULT_VERSION = '1.0.0-beta.1'
 GROUP_ID = 'com.azure.resourcemanager'
 API_SPECS_FILE = 'api-specs.yaml'