Merge pull request #45 from linked-data-dotnet/dependabot/nuget/System.Text.RegularExpressions-4.3.1

Bump System.Text.RegularExpressions from 4.1.0 to 4.3.1

Author: asbjornu

src/json-ld.net/json-ld.net.csproj

@@ -34,6 +34,6 @@ Implements the W3C JSON-LD 1.0 standard.</Description>
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.3' ">
     <PackageReference Include="System.Dynamic.Runtime" Version="4.0.11" />
     <PackageReference Include="System.Security.Cryptography.Algorithms" Version="4.2.0" />
-    <PackageReference Include="System.Text.RegularExpressions" Version="4.1.0" />
+    <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
   </ItemGroup>
 </Project>