Bump JetBrains.Annotations from 2019.1.3 to 2020.1.0
Bump JetBrains.Annotations from 2019.1.3 to 2020.1.0

Bumps JetBrains.Annotations from 2019.1.3 to 2020.1.0.

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
asbjornu/GitVersion,ParticularLabs/GitVersion,dazinator/GitVersion,ermshiperete/GitVersion,GitTools/GitVersion,gep13/GitVersion,gep13/GitVersion,ermshiperete/GitVersion,GitTools/GitVersion,ermshiperete/GitVersion,dazinator/GitVersion,asbjornu/GitVersion,ermshiperete/GitVersion,ParticularLabs/GitVersion