chore(deps): bump minijinja from 2.20.0 to 2.21.0

Bumps [minijinja](https://github.com/mitsuhiko/minijinja) from 2.20.0 to 2.21.0.
- [Release notes](https://github.com/mitsuhiko/minijinja/releases)
- [Changelog](https://github.com/mitsuhiko/minijinja/blob/main/CHANGELOG.md)
- [Commits](mitsuhiko/minijinja@minijinja-go/v2.20.0...minijinja-go/v2.21.0)

---
updated-dependencies:
- dependency-name: minijinja
  dependency-version: 2.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]