Fix crash on machine creation

This MR fixes a critical failure encountered in https://gitlab.com/gitlab-com/infrastructure/issues/1073

@tmaczukin Could you release a new patch release ASAP?

added 12 commits

• bea53779...1e3e4a29 - 11 commits from branch master
• c44ba682 - Fix crash when a machine could not be created and when invalid data is returned

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added 1 commit

• 7a33f5c5 - Fix crash when a machine could not be created and when invalid data is returned

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added 1 commit

• cb440f7f - Fix crash when a machine could not be created and when invalid data is returned

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@ayufan Sure, I will merge this and release v1.10.3 in a moment.

added ~58730 executordocker-machine labels

enabled an automatic merge when the pipeline for cb440f7f succeeds

added 1 commit

• c189d38e - Temporary fix for gitlab-helper arm image build

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enabled an automatic merge when the pipeline for c189d38e succeeds

merged

mentioned in commit dbf70b85

mentioned in commit 5470801c