feat: tpu_queued_resources_startup_script/create_network/time_bound

[gryczj]

Description

Fixes #

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[snippet-bot[bot]]

Here is the summary of changes.

You are about to add 3 region tags.

- [tpu/queuedResources/createQueuedResourceNetwork.js:20](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/a66c4ebee7b2a2cb82435c20bac13c7b7f64fbbb/tpu/queuedResources/createQueuedResourceNetwork.js#L20), tag `tpu_queued_resources_create_network` - [tpu/queuedResources/createQueuedResourceStartupScript.js:20](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/a66c4ebee7b2a2cb82435c20bac13c7b7f64fbbb/tpu/queuedResources/createQueuedResourceStartupScript.js#L20), tag `tpu_queued_resources_startup_script` - [tpu/queuedResources/createQueuedResourceTimeBound.js:20](https://github.com/GoogleCloudPlatform/nodejs-docs-samples/blob/a66c4ebee7b2a2cb82435c20bac13c7b7f64fbbb/tpu/queuedResources/createQueuedResourceTimeBound.js#L20), tag `tpu_queued_resources_time_bound`

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[gryczj]

Due to high costs of TPU Nodes, it was decided to use mocks in the tests.