[markdown] Use older version of mdl (0.9)

[MartinBasti]

https://github.com/markdownlint/markdownlint/issues/341

Signed-off-by: Martin Bašti mbasti@redhat.com

Maintainers will complete the following section

• [ ] Commit messages are descriptive enough
• [ ] Code coverage from testing does not decrease and new code is covered
• [ ] JSON/YAML configuration changes are updated in the relevant schema
• [ ] Pull request has a link to an osbs-docs PR for user documentation updates

[packit-as-a-service[bot]]

Congratulations! One of the builds has completed. :champagne:

You can install the built RPMs by following these steps:

• sudo yum install -y dnf-plugins-core on RHEL 8
• sudo dnf install -y dnf-plugins-core on Fedora
• dnf copr enable packit/containerbuildsystem-koji-containerbuild-188
• And now you can install the packages.

Please note that the RPMs should be used only in a testing environment.

[ben-alkov]

markdownlint/markdownlint#344