message: Add codefences to changeset
diff: '@backstage/core': patch
  ---
  -Removed InfoCard variant "height100", originally deprecated in [#2826](https://github.com/backstage/backstage/pull/2826).
  +Removed `InfoCard` variant `height100`, originally deprecated in [#2826](https://github.com/backstage/backstage/pull/2826).
  -If your component still relies on this variant, simply replace it with "gridItem".
  +If your component still relies on this variant, simply replace it with `gridItem`.
  