fix(core): do not print flaky tasks guidance when nx cloud is already enabled (#33149)

## Current Behavior

When there are flaky tasks in a local run for a workspace that has Nx
Cloud enabled, a help message is displayed, advising users to use Nx
Cloud and pointing them to documentation on how to do so. Given that the
workspace is already using Nx Cloud, the message is redundant.

## Expected Behavior

When there are flaky tasks in a local run for a workspace that has Nx
Cloud enabled, no help message should be shown advising users to use Nx
Cloud and pointing them to documentation on how to do so. If the
workspace doesn't have Nx Cloud set up, the message should still be
shown.

Author: leosvelperez

packages/nx/src/tasks-runner/life-cycles/task-history-life-cycle-old.ts

@@ -1,9 +1,11 @@
+import { readNxJson } from '../../config/nx-json';
 import { Task } from '../../config/task-graph';
 import {
   getHistoryForHashes,
   TaskRun,
   writeTaskRunsToHistory,
 } from '../../utils/legacy-task-history';
+import { isNxCloudUsed } from '../../utils/nx-cloud-utils';
 import { output } from '../../utils/output';
 import { serializeTarget } from '../../utils/serialize-target';
 import { isTuiEnabled } from '../is-tui-enabled';
@@ -72,8 +74,12 @@ export class LegacyTaskHistoryLifeCycle implements LifeCycle {
         bodyLines: [
           ,
           ...this.flakyTasks.map((t) => `  ${t}`),
-          '',
-          `Flaky tasks can disrupt your CI pipeline. Automatically retry them with Nx Cloud. Learn more at https://nx.dev/ci/features/flaky-tasks`,
+          ...(isNxCloudUsed(readNxJson())
+            ? []
+            : [
+                '',
+                `Flaky tasks can disrupt your CI pipeline. Automatically retry them with Nx Cloud. Learn more at https://nx.dev/ci/features/flaky-tasks`,
+              ]),
         ],
       });
     }

packages/nx/src/tasks-runner/life-cycles/task-history-life-cycle.ts

@@ -1,5 +1,7 @@
+import { readNxJson } from '../../config/nx-json';
 import { Task } from '../../config/task-graph';
 import { IS_WASM, type TaskRun as NativeTaskRun } from '../../native';
+import { isNxCloudUsed } from '../../utils/nx-cloud-utils';
 import { output } from '../../utils/output';
 import { serializeTarget } from '../../utils/serialize-target';
 import { getTaskHistory, TaskHistory } from '../../utils/task-history';
@@ -94,8 +96,12 @@ export class TaskHistoryLifeCycle implements LifeCycle {
               taskRun.target.configuration
             )}`;
           }),
-          '',
-          `Flaky tasks can disrupt your CI pipeline. Automatically retry them with Nx Cloud. Learn more at https://nx.dev/ci/features/flaky-tasks`,
+          ...(isNxCloudUsed(readNxJson())
+            ? []
+            : [
+                '',
+                `Flaky tasks can disrupt your CI pipeline. Automatically retry them with Nx Cloud. Learn more at https://nx.dev/ci/features/flaky-tasks`,
+              ]),
         ],
       });
     }