Bump Verify.DiffPlex from 3.0.0 to 3.1.0

Bumps Verify.DiffPlex from 3.0.0 to 3.1.0.

---
updated-dependencies:
- dependency-name: Verify.DiffPlex
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Directory.Packages.props

@@ -40,7 +40,7 @@
         <PackageVersion Include="Shouldly"
                         Version="4.2.1" />
         <PackageVersion Include="Verify.DiffPlex"
-                        Version="3.0.0" />
+                        Version="3.1.0" />
         <PackageVersion Include="Verify.Xunit"
                         Version="25.3.0" />
         <PackageVersion Include="Vezel.Cathode"