CI failing on `release/14.0`

CI (`ci.yml`) is failing on push to `release/14.0`. The branch is red.

Filed automatically when a push to this branch fails CI. Each failed run is
recorded as a comment below. The issue is **closed automatically** when a
later push to the same branch passes CI.
See [docs/ci/ci-failure-issues.md](../../blob/main/docs/ci/ci-failure-issues.md).

Start with the failed CI runs recorded in the issue comments and inspect ci.yml for the failing job on release/14.0. Identify the failure from the run output, then verify that a later push to the same branch passes CI so the branch is green.

Written by the indexing model from the issue text.