chore: librarian release pull request: 20251210T192622Z (#2321)

PR created by the Librarian CLI to initialize a release. Merging this PR
will auto trigger a release.

Librarian Version: v0.7.0
Language Image:
us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:c8612d3fffb3f6a32353b2d1abd16b61e87811866f7ec9d65b59b02eb452a620
<details><summary>bigframes: 2.31.0</summary>

##
[2.31.0](v2.30.0...v2.31.0)
(2025-12-10)

### Features

* add `bigframes.bigquery.ml` methods (#2300)
([719b278](719b278c))

* add &#39;weekday&#39; property to DatatimeMethod (#2304)
([fafd7c7](fafd7c73))

### Bug Fixes

* cache DataFrames to temp tables in bigframes.bigquery.ml methods to
avoid time travel (#2318)
([d993831](d9938319))

### Reverts

* DataFrame display uses IPython&#39;s `_repr_mimebundle_` (#2316)
([e4e3ec8](e4e3ec85))

</details>

Author: TrevorBergeron