Regenerate vision client

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Here's the log from Synthtool:

synthtool > Executing /tmpfs/src/git/autosynth/working_repo/google-cloud-clients/google-cloud-vision/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:5fd9aee1d82a00cebf425c8fa431f5457539562f5867ad9c54370f0ec9a7ccaa
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/cloud/vision/artman_vision_v1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 62 files
synthtool > Running java formatter on 2 files
synthtool > Running java formatter on 162 files
synthtool > Running generator for google/cloud/vision/artman_vision_v1p1beta1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 62 files
synthtool > Running java formatter on 1 files
synthtool > Running java formatter on 67 files
synthtool > Running generator for google/cloud/vision/artman_vision_v1p2beta1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 62 files
synthtool > Running java formatter on 1 files
synthtool > Running java formatter on 91 files
synthtool > Running generator for google/cloud/vision/artman_vision_v1p3beta1.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/java.
synthtool > Running java formatter on 62 files
synthtool > Running java formatter on 2 files
synthtool > Running java formatter on 165 files
synthtool > Cleaned up 0 temporary directories.
synthtool > Wrote metadata to synth.metadata.