[master] Update dependencies from dotnet/winforms#2921

Merged

dotnet-maestro[bot] merged 1 commit intomasterfrom darc-master-dd3add0b-d1b4-449f-8c65-9e3f2a6a72bd

Apr 23, 2020

+3-3

Commits on Apr 23, 2020

Update dependencies from https://github.com/dotnet/winforms build 20200422.2
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