Update `begin-after-commit-hash` (#92)
Update `begin-after-commit-hash` (#92)

The generated client in this library was recently updated so the `begin-after-commit-hash` should match the SHA of the update:

The following changes were pulled in:
feat: Added support for configurable budget time period.
fix: Updated some documentation links.
googleapis/python-billingbudgets,googleapis/python-billingbudgets