Bump eWaterCycle/setup-singularity from 6 to 7
Bump eWaterCycle/setup-singularity from 6 to 7

Bumps [eWaterCycle/setup-singularity](https://github.com/eWaterCycle/setup-singularity) from 6 to 7.
- [Release notes](https://github.com/eWaterCycle/setup-singularity/releases)
- [Commits](https://github.com/eWaterCycle/setup-singularity/compare/v6...v7)

---
updated-dependencies:
- dependency-name: eWaterCycle/setup-singularity
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
common-workflow-language/cwltool,common-workflow-language/cwltool,common-workflow-language/cwltool