fix: remove double error reporting in merge docker wrappers

createMultiPlatformImage was calling setResult/setFailed with the
detailed error, then main.ts overwrote it with a generic message.
Now docker.ts logs the detail and main.ts is the single source of
truth for task failure status.

Author: tgenov

azdo-task/DevcontainersMerge/src/docker.ts

@@ -1,4 +1,3 @@
-import * as task from 'azure-pipelines-task-lib/task';
 import * as docker from '../../../common/src/docker';
 import {exec} from './exec';
 
@@ -20,7 +19,7 @@ export async function createMultiPlatformImage(
 		);
 		return true;
 	} catch (error) {
-		task.setResult(task.TaskResult.Failed, `${error}`);
+		console.error(`${error}`);
 		return false;
 	}
 }

merge/src/docker.ts

@@ -21,7 +21,7 @@ export async function createMultiPlatformImage(
 		);
 		return true;
 	} catch (error) {
-		core.setFailed(error);
+		core.error(String(error));
 		return false;
 	} finally {
 		core.endGroup();