Add changelog, replace fedora.linux-system-roles for downstream
    
    - Add MVP HA functionality to the server role
      Resolves: rhbz#2066337
    - Add mssql_tls_remote_src to the server role
      Resolves: rhbz#2098212
    - Use firewall role to configure firewall for SQL Server
      Resolves: rhbz#2120709
    - Replace simple `mssql_input_sql_file` with `pre` and `post` variables
      Resolves: rhbz#2120712
    - Add Requires: linux-system-roles or rhel-system-roles
    - Replace fedora.l inux_system_roles:redhat.rhel_system_roles on RHEL
    - Add downstream values to galaxy.yml
    - Change defcommit to defsource that takes both tags and commits
    - Update CHANGELOG.md with the current date and copy it to collection dir