## Summary
Re-enable FIPS for release-5.13.0. Auto-generated by gromit policy
with the fips feature flag re-added. Restores:
- FIPS Docker image build steps
- FIPS deb/rpm package builds (goreleaser)
- FIPS plugin compiler builds (if applicable)

Source-of-truth gromit config PR: TykTechnologies/gromit#473

## Test plan
- [ ] Release workflow produces FIPS Docker images
- [ ] FIPS deb/rpm packages produced

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>