[xmlunit/xmlunit.net] 09a9f5: there is no appveyor-retry on Linux

[Stefan B. <no...@gi...>]

  Branch: refs/heads/main
  Home:   https://github.com/xmlunit/xmlunit.net
  Commit: 09a9f59c5ded96eac92783a8f3307a55237d0e48
      https://github.com/xmlunit/xmlunit.net/commit/09a9f59c5ded96eac92783a8f3307a55237d0e48
  Author: Stefan Bodewig <bo...@ap...>
  Date:   2023-03-14 (Tue, 14 Mar 2023)

  Changed paths:
    M appveyor.yml

  Log Message:
  -----------
  there is no appveyor-retry on Linux