Bump DiffEngine from 20.2.1 to 20.2.2

---
updated-dependencies:
- dependency-name: DiffEngine
  dependency-version: 20.2.2
  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

@@ -21,7 +21,7 @@
     <PackageVersion Include="Verify.DiffPlex" Version="3.3.1" />
     <PackageVersion Include="Microsoft.Sbom.Targets" Version="4.1.5" />
     <PackageVersion Include="Argon" Version="0.36.0" />
-    <PackageVersion Include="DiffEngine" Version="20.2.1" />
+    <PackageVersion Include="DiffEngine" Version="20.2.2" />
     <PackageVersion Include="EmptyFiles" Version="8.18.2" />
     <PackageVersion Include="SimpleInfoName" Version="3.2.0" />
   </ItemGroup>