test: use fully qualified request type name in tests (#930)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 475956674

Source-Link: googleapis/googleapis@210422e

Source-Link: https://github.com/googleapis/googleapis-gen/commit/43a371600cebdecaa8186f47920a9a471182dd5b
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test: use fully qualified request type name in tests
PiperOrigin-RevId: 475685359

Source-Link: googleapis/googleapis@7a12973

Source-Link: https://github.com/googleapis/googleapis-gen/commit/370c729e2ba062a167449c27882ba5f379c5c34d
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feat: added Speech-to-Text V2 API proto
The next generation Speech-to-Text V2 API provides the same features clients are familiar with in the existing Speech-to-Text API, while modernizing and simplifying the API using API best practices, resourceful methods, and updated infrastructure. Although this proto is published, the service is not yet available.

PiperOrigin-RevId: 474926510

Source-Link: googleapis/googleapis@bb4d7f4

Source-Link: https://github.com/googleapis/googleapis-gen/commit/9ecdb75038b10cfe4685d8a301e2abf8e4dfaa48
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