chore(deps): update dependency system.io.abstractions.testinghelpers to v17.2.3

Author: renovate-bot

PostfixNumberRemover.Tests/PostfixNumberRemover.Tests.csproj

@@ -9,7 +9,7 @@
     <PackageReference Include="nunit" Version="3.13.3" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
-    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="17.2.1" />
+    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="17.2.3" />
   </ItemGroup>
 
   <ItemGroup>