feat: add storage batch operations samples

[thiyaguk09]

Description

Fixes #

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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

Note: Any check with (dev), (experimental), or (legacy) can be ignored and should not block your PR from merging (see CI testing).

[snippet-bot]

Here is the summary of changes.

You are about to add 6 region tags.

• storagebatchoperations/cancelJob.js:25, tag storage_batch_cancel_job
• storagebatchoperations/createJob.js:25, tag storage_batch_create_job
• storagebatchoperations/deleteJob.js:25, tag storage_batch_delete_job
• storagebatchoperations/getJob.js:25, tag storage_batch_get_job
• storagebatchoperations/listJobs.js:25, tag storage_batch_list_jobs
• storagebatchoperations/quickstart.js:25, tag storage_batch_quickstart

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