change indentation from 2 to 1

The CloudFormation console will display 
the original template file that was 
uploaded by the CDK. To balance the 
concerns of readability and file size
the indentation has been changed from
two spaces to one space.

Co-authored-by: Pat Myron <PatMyron@users.noreply.github.com>

packages/aws-cdk/lib/api/cxapp/cloud-executable.ts

@@ -173,7 +173,7 @@ export class CloudExecutable {
       //
       // Be sure to flush the changes we just made back to disk. The on-disk format is always
       // JSON.
-      await fs.writeFile(stack.templateFullPath, JSON.stringify(stack.template), { encoding: 'utf-8' });
+      await fs.writeFile(stack.templateFullPath, JSON.stringify(stack.template, undefined, 1), { encoding: 'utf-8' });
     }
   }