feat: Added samples for secrets with labels

[vipul7499]

Description

Fixes #

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

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)
• 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

[snippet-bot]

Here is the summary of changes.

You are about to add 4 region tags.

• secret-manager/createSecretWithLabels.js:18, tag secretmanager_create_secret_with_labels
• secret-manager/createUpdateSecretLabel.js:18, tag secretmanager_create_update_secret_label
• secret-manager/deleteSecretLabel.js:18, tag secretmanager_delete_secret_label
• secret-manager/viewSecretLabels.js:18, tag secretmanager_view_secret_labels

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[sofisl]

Nit (for all samples): I don't think it's good practice to have default values since the sample will fail confusingly for users not running it with the correct values. I think its better to leave them empty so that the user gets a message as to why it fails. Plus, you have the sample values in the comments anyways.

[vipul7499]

Fixed

[subfuzion]

Hi @vipul7499, the CI test is failing because certain workflows can't be run from a fork. Please resubmit this pull request using a branch on this repo instead of your fork. I confirmed that your pull request will pass tests once you do this. Thanks!

[Sita04]

@vipul7499 LGTM from dee-infra. Will look out for your new PR from the branch as @subfuzion mentioned.

[vipul7499]

Hey, @Sita04 @subfuzion I am unable to create a branch because i do not have required permissions.

[subfuzion]

@vipul7499

Hey, @Sita04 @subfuzion I am unable to create a branch because i do not have required permissions.

Please work with your team to follow the process for getting access already mentioned in internal chat. Thank you.

[iennae]

@vipul7499 we need to chat about this set of samples.

[vipul7499]

Hey @iennae , Can you please post your concern regarding the samples?

[iennae]

Hey @iennae , Can you please post your concern regarding the samples?

We are meeting with @Sita04 to discuss the set of samples next week. Thanks for your patience.

[vipul7499]

@subfuzion
#3767
Updated PR with the branch in the main repo instead of fork ^