Update dependency xunit.runner.visualstudio to v2.4.3

[mend-for-github-com]

This PR contains the following updates:

Package	Type	Update	Change
xunit.runner.visualstudio	nuget	patch	2.4.0 -> 2.4.3

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Release Notes

xunit/visualstudio.xunit

v2.4.3

Changes:

• #​229: Target frameworks not matching
• #​226: Bump MSBuild.Sdk.Extras from 2.0.54 to 2.1.2
• #​227: Bump Nerdbank.GitVersioning from 3.1.91 to 3.2.31
• #​222: Bump NSubstitute from 4.2.1 to 4.2.2

This list of changes was auto generated.

v2.4.2

• Update to enable filtering during the discovery phase Filtering default traits/categories in the .runsettings file microsoft/vstest#2273
• Bump minimum supported .NET Core version to 2.1 as it's the lowest currently supported version by Microsoft.

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