feat: [analyticsdata] add subject_to_thresholding field to `Respons…

…eMetadata` type (#8545)

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feat: add `tokens_per_project_per_hour` field to `PropertyQuota` type

PiperOrigin-RevId: 479394249

Source-Link: https://github.com/googleapis/googleapis/commit/59b73bd6f7c00dc5af895414c444b08055849bdf

Source-Link: https://github.com/googleapis/googleapis-gen/commit/c2f211bcb3cc0b10cb71905185dd740bd26fc372
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