chore(all): auto-regenerate .pb.go files (#971)

This is an auto-generated regeneration of the .pb.go files by
cloud.google.com/go/internal/gapicgen. Once this PR is submitted, genbot will
update the corresponding PR to depend on the newer version of go-genproto, and
assign reviewers. Whilst this or any regen PR is open in go-genproto, genbot
will not create any more regeneration PRs. If all regen PRs are closed,
gapicgen will create a new set of regeneration PRs once per night.

If you have been assigned to review this PR, please:

- Ensure that CI is passing. If it's failing, it requires your manual attention.
- Approve and submit this PR if you believe it's ready to ship. That will prompt
genbot to assign reviewers to the google-cloud-go PR.

Corresponding google-cloud-go PR: googleapis/google-cloud-go#7337

Changes:

docs(speech): Clarified boost usage
  PiperOrigin-RevId: 506405333
  Source-Link: googleapis/googleapis@c8a382b

docs(dataplex): Improvements to DataScan API documentation
  PiperOrigin-RevId: 506348044
  Source-Link: googleapis/googleapis@4eb6d9e

chore: regenerate API index

  Source-Link: googleapis/googleapis@8617368

chore(googleads)!: remove protos for v10, which has sunset
  Committer: @Raibaz

  BREAKING CHANGE: Removing the entire version 10 of the Google Ads API because it has sunset and it is no longer available.

  PiperOrigin-RevId: 506319904
  Source-Link: googleapis/googleapis@798becd

feat: add resizing and specified words only options
  PiperOrigin-RevId: 506123298
  Source-Link: googleapis/googleapis@c61555b