From: Cooper Lees <me@cooperlees.com>
Date: Sun, 25 Apr 2021 21:51:13 +0000 (-0700)
Subject: Docker CI: Add missed Checkout step (#2128)
X-Git-Url: https://git.madduck.net/etc/vim.git/commitdiff_plain/eee949e286363384b25426b9ce461d31a5842ebf?ds=inline;hp=eee949e286363384b25426b9ce461d31a5842ebf

Docker CI: Add missed Checkout step (#2128)

- Reading my error others hit it by forgetting this Checkoutstep too so trying the fix
  - e.g. https://github.com/docker/build-push-action/issues/179
- Makes sense it's needed
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