Bump DiffEngine from 18.4.1 to 18.4.2

---
updated-dependencies:
- dependency-name: DiffEngine
  dependency-version: 18.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -18,7 +18,7 @@
     <PackageVersion Include="Verify.EntityFramework" Version="15.0.2" />
     <PackageVersion Include="Verify.SqlServer" Version="11.3.1" />
     <PackageVersion Include="Argon" Version="0.33.5" />
-    <PackageVersion Include="DiffEngine" Version="18.4.1" />
+    <PackageVersion Include="DiffEngine" Version="18.4.2" />
     <PackageVersion Include="EmptyFiles" Version="8.17.2" />
     <PackageVersion Include="SimpleInfoName" Version="3.2.0" />
     <PackageVersion Include="Verify" Version="31.13.1" />