chore(secretmanager): Added samples for delete secret annotation

[durgesh-ninave-crest]

Description

Created samples for Global and Regional Secret Manager API

Samples

1. Delete Secret Annotation
2. Delete Regional Secret Annotation

Checklist

• I have followed guidelines from CONTRIBUTING.MD and Samples Style Guide
• Tests pass: npm test (see Testing)
• Lint pass: npm run lint (see Style)
• Required CI tests pass (see CI testing)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This pull request is from a branch created directly off of GoogleCloudPlatform/nodejs-docs-samples. Not a fork.
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new sample directory, and I created GitHub Actions workflow for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[gemini-code-assist]

Summary of Changes

Hello @durgesh-ninave-crest, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces new Node.js code samples for the Google Cloud Secret Manager service. The primary goal is to provide clear, runnable examples demonstrating how to delete annotations from secrets, covering both the global and regional API endpoints. This enhancement improves the comprehensiveness of the existing sample set and aids developers in managing secret metadata.

Highlights

• New Secret Manager Samples: Two new Node.js samples have been added to demonstrate how to delete annotations from Google Cloud Secret Manager secrets.
• Global API Support: A sample (deleteSecretAnnotation.js) is provided for interacting with the global Secret Manager API to remove a specific annotation from a secret.
• Regional API Support: A dedicated sample (deleteRegionalSecretAnnotation.js) is included to show how to delete annotations from secrets managed by the regional Secret Manager API, including proper endpoint configuration.
• Test Coverage: Corresponding unit tests have been added to secretmanager.test.js to ensure the correctness and functionality of both the global and regional secret annotation deletion samples.

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[gemini-code-assist]

Code Review

This pull request adds two new samples for deleting secret annotations, one for global and one for regional secrets, along with corresponding tests. My review identifies a critical bug in both new sample files that would cause a crash if a secret has no annotations. I've provided suggestions to fix the bug by adding a check for oldSecret.annotations before attempting to delete from it.

[YashSaraf11]

This is not a feature, please use chore for future work!

Also please update the title of the pull request here

[snippet-bot]

Here is the summary of changes.

You are about to add 2 region tags.

• secret-manager/deleteSecretAnnotation.js:18, tag secretmanager_delete_secret_annotation
• secret-manager/regional_samples/deleteRegionalSecretAnnotation.js:18, tag secretmanager_delete_regional_secret_annotation

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[YashSaraf11]

LGTM!