Backport PR #17552 on branch v3.2.x (ci: Add xcb libraries that were removed from PyQt5.)#17553

Merged

tacaswell merged 1 commit intomatplotlib:v3.2.xfrom

meeseeksmachine:auto-backport-of-pr-17552-on-v3.2.x

Jun 2, 2020

Commits on Jun 2, 2020

Backport PR #17552: ci: Add xcb libraries that were removed from PyQt5.

tacaswell
authored and
meeseeksmachine
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