Compatibility with Ubuntu 20.04 LTS

[vitabaks]

Ubuntu Server 20.04 LTS is released April 23, 2020.
Add compatibility with postgresql_cluster.

[github-actions]

yamllint Failed

Show Output

./vars/Debian.yml
  27:21     error    too few spaces after comma  (commas)
  27:32     error    too few spaces after comma  (commas)
  27:48     error    too few spaces after comma  (commas)
  28:21     error    too few spaces after comma  (commas)
  28:32     error    too few spaces after comma  (commas)
  28:48     error    too few spaces after comma  (commas)
  29:22     error    too few spaces after comma  (commas)
  29:33     error    too few spaces after comma  (commas)
  29:49     error    too few spaces after comma  (commas)
  30:22     error    too few spaces after comma  (commas)
  30:33     error    too few spaces after comma  (commas)
  30:49     error    too few spaces after comma  (commas)
  31:22     error    too few spaces after comma  (commas)
  31:33     error    too few spaces after comma  (commas)
  31:49     error    too few spaces after comma  (commas)

Workflow: Yamllint, Action: karancodeyamllint-github-action, Lint: .

[vitabaks]

yamllint error - too few spaces after comma - fixed (c0d3502).