Update build images
What does this MR do?
- updates chrome to v61
- updates node to v8.x
- updates yarn to v1.0.2
Are there points in the code the reviewer needs to double check?
all tests should still pass
Why was this MR needed?
bugs in pre-1.0 yarn cause confusing build failures due to peerDependency hoisting
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Documentation created/updated -
API support added -
Tests added for this feature/bug - Review
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Has been reviewed by UX -
Has been reviewed by Frontend -
Has been reviewed by Backend -
Has been reviewed by Database
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Conform by the merge request performance guides -
Conform by the style guides -
Squashed related commits together