Bump System.Text.RegularExpressions from 4.3.0 to 4.3.1 in /NavigationServiceSample/src/Keyboard.Tests#2

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dependabot/nuget/NavigationServiceSample/src/Keyboard.Tests/System.Text.RegularExpressions-4.3.1kaditya007/KeyboardService:dependabot/nuget/NavigationServiceSample/src/Keyboard.Tests/System.Text.RegularExpressions-4.3.1Copy head branch name to clipboard