chore: release 0.123.0

[yoshi-automation]

🤖 I have created a release *beep* *boop*

0.123.0

google/cloud-bigquery 1.12.2

Bug Fixes

• add tests for dataset and model encryption config (#2377) (87b309d)

google/cloud-bigquerydatatransfer 0.15.1

Bug Fixes

• update metadata (#2543) (0e6da4d)

google/cloud-dataproc 0.16.1

Bug Fixes

• update rest transport URI bindings (#2527) (79e9dc7)

google/cloud-kms 1.8.0

Features

• add external protection level, update documentation (#2538) (fe62c50)

Bug Fixes

• update metadata and documentation (#2574) (6ad24c1)

google/cloud-secret-manager 0.1.0

Features

• introduce secret manager client (#2582) (2fa7fd8)

google/cloud-security-center 0.3.0

Features

• update SecurityCenter client (#2567) (2fa7fd8)

google/cloud-speech 0.30.0

Features

• update v1pv1beta1 timeouts (#2576) (c18cc32)

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