variants:
  2.2.0-from-0.25.2:
    NEW_VERSION: 2.2.0
    OLD_VERSION: 0.25.2
  2.2.0-from-0.23.2:
    NEW_VERSION: 2.2.0
    OLD_VERSION: 0.23.2

variants:
  2.2.0-from-0.25.2:
    NEW_VERSION: 2.2.0
    OLD_VERSION: 0.25.2
  2.2.0-from-0.23.2:
    NEW_VERSION: 2.2.0
    OLD_VERSION: 0.23.2
  test-infra:
    NEW_VERSION: 2.2.0
    OLD_VERSION: 2.0.0

Create a test-infra variant of bazel.
Create a test-infra variant of bazel.

This image will install the current and next version of bazel we plan to use in test-infra.
By putting both these versions in the same image, we can configure jobs to use .bazelversion
and safely upgrade from one version to the next via a PR.
