Bump ansible-lint from 5.0.12 to 5.1.2 in /.github/workflows

Bumps [ansible-lint](https://github.com/ansible-community/ansible-lint) from 5.0.12 to 5.1.2.
- [Release notes](https://github.com/ansible-community/ansible-lint/releases)
- [Commits](ansible/ansible-lint@v5.0.12...v5.1.2)

---
updated-dependencies:
- dependency-name: ansible-lint
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/constraints.txt

@@ -1,4 +1,4 @@
 pip==21.1.3
 ansible==4.2.0
 yamllint==1.26.1
-ansible-lint==5.0.12
+ansible-lint==5.1.2