fix: Redis Error Message Fix

[PiyushPushkar02]

Description

• Changed the error message returned in case of an invalid hostname for Redis.
• This PR does not solve the issue for mongo.

Fixes #21405

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• Manual
• JUnit

Checklist:

Dev activity

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [ ] PR is being merged under a feature flag

QA activity:

• [ ] Test plan has been approved by relevant developers
• [ ] Test plan has been peer reviewed by QA
• [ ] Cypress test cases have been added and approved by either SDET or manual QA
• [ ] Organized project review call with relevant stakeholders after Round 1/2 of QA
• [ ] Added Test Plan Approved label after reveiwing all Cypress test

[what-the-diff[bot]]

PR Summary

• Changed testDatasource method return type The method now returns a Mono<DatasourceTestResult> instead of being void, which provides more information about the test results.
• Introduced verifyPing method A new method called verifyPing is created. It returns a DatasourceTestResult and is now used in the testDataSource function for better testing accuracy.

[PiyushPushkar02]

/ok-to-test sha=c82f603

[github-actions[bot]]

Tests running at: https://github.com/appsmithorg/appsmith/actions/runs/4923848422. Workflow: Appsmith External Integration Test Workflow. Commit: c82f603. PR: 23067. Perf tests will be available at https://app.appsmith.com/app/performance-infra-dashboard/pr-details-638dd7cd2913ba43778b915e?pr=23067&runId=4923848422_1

[github-actions[bot]]

Workflow run: https://github.com/appsmithorg/appsmith/actions/runs/4923848422. Commit: c82f603. The following are new failures, please fix them before merging the PR:

1. cypress/integration/Regression_TestSuite/ClientSideTests/Autocomplete/Autocomplete_JS_spec.ts
2. cypress/integration/Regression_TestSuite/ClientSideTests/OtherUIFeatures/Omnibar_spec.js
3. cypress/integration/Regression_TestSuite/ClientSideTests/Templates/Fork_Template_spec.js
4. cypress/integration/Regression_TestSuite/ServerSideTests/MySQL_Datatypes/False_Spec.ts

To know the list of identified flaky tests - Refer here

[github-actions[bot]]

Workflow run: https://github.com/appsmithorg/appsmith/actions/runs/4923848422. Commit: c82f603. All cypress tests have passed 🎉

[github-actions[bot]]

Workflow run: https://github.com/appsmithorg/appsmith/actions/runs/4923848422. Commit: c82f603. All cypress tests have passed 🎉

[PiyushPushkar02]

/build-deploy-preview

[github-actions[bot]]

Deploying Your Preview: https://github.com/appsmithorg/appsmith/actions/runs/4934264851. Workflow: On demand build Docker image and deploy preview. skip-tests: . env: . PR: 23067. recreate: .

[github-actions[bot]]

Deploy-Preview-URL: https://ce-23067.dp.appsmith.com