ci: wire pre_release input to cross-platform tests (#11925)

The cross-platform-test.yml references inputs.pre_release in the
force-reinstall steps (added in PR #11322) but never declares it as a
workflow_call input. release.yml also never passes it. This means
inputs.pre_release is always empty, force-reinstall always uses
--no-deps, and dependency resolution fails for RC versions.

- Add pre_release as a workflow_call boolean input in cross-platform-test.yml
- Pass pre_release from release.yml when calling cross-platform-test.yml