feat: Adding API v2 BigQuery export samples

[rafaelMurata]

Description

b/349639990

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[bot]]

Here is the summary of changes.

You are about to add 5 region tags.

- [security-center/snippets/v2/createBigQueryExport.js:22](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/5bad6fd81bc8dffad02c113f9dd88d621b8c8559/security-center/snippets/v2/createBigQueryExport.js#L22), tag `securitycenter_create_bigquery_export_v2` - [security-center/snippets/v2/deleteBigQueryExport.js:22](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/5bad6fd81bc8dffad02c113f9dd88d621b8c8559/security-center/snippets/v2/deleteBigQueryExport.js#L22), tag `securitycenter_delete_bigquery_export_v2` - [security-center/snippets/v2/getBigQueryExport.js:22](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/5bad6fd81bc8dffad02c113f9dd88d621b8c8559/security-center/snippets/v2/getBigQueryExport.js#L22), tag `securitycenter_get_bigquery_export_v2` - [security-center/snippets/v2/listAllBigQueryExports.js:22](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/5bad6fd81bc8dffad02c113f9dd88d621b8c8559/security-center/snippets/v2/listAllBigQueryExports.js#L22), tag `securitycenter_list_bigquery_export_v2` - [security-center/snippets/v2/updateBigQueryExport.js:22](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/5bad6fd81bc8dffad02c113f9dd88d621b8c8559/security-center/snippets/v2/updateBigQueryExport.js#L22), tag `securitycenter_update_bigquery_export_v2`

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