[CI] Fix XCode 12.4 job - that wasn't valid YAML
[CI] Fix XCode 12.4 job - that wasn't valid YAML

LebedevRI/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed