Bump Xunit from 2.4.2 to 2.5.0 in /src (#366)

Author: dependabot[bot]

src/DiffEngine.Tests/DiffEngine.Tests.csproj

@@ -11,7 +11,7 @@
     <PackageReference Include="MarkdownSnippets.MsBuild" Version="24.5.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3" />
     <PackageReference Include="Argon" Version="0.7.2" />
-    <PackageReference Include="Xunit" Version="2.4.2" />
+    <PackageReference Include="Xunit" Version="2.5.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" PrivateAssets="all" />
     <PackageReference Include="ProjectDefaults" Version="1.0.91" PrivateAssets="all" />
     <PackageReference Include="XunitContext" Version="3.3.0" />

src/DiffEngineTray.Tests/DiffEngineTray.Tests.csproj

@@ -12,7 +12,7 @@
     <PackageReference Include="Verify.WinForms" Version="4.0.0" />
     <PackageReference Include="Verify.Xunit" Version="20.4.0" />
     <PackageReference Include="Verify.ImageMagick" Version="3.2.2" />
-    <PackageReference Include="Xunit" Version="2.4.2" />
+    <PackageReference Include="Xunit" Version="2.5.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" PrivateAssets="all" />
     <PackageReference Include="ProjectDefaults" Version="1.0.91" PrivateAssets="all" />
     <PackageReference Include="XunitContext" Version="3.3.0" />