chore(deps): update dependency diffengine to v15.3.0 (#313)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/Directory.build.props

@@ -41,7 +41,7 @@
 		<PackageReference Include="Xunit.SkippableFact" Version="1.4.13" />
 		<PackageReference Include="Xunit.StaFact" Version="1.1.11" />
 		<PackageReference Include="FluentAssertions" Version="6.12.0" />
-		<PackageReference Include="DiffEngine" Version="15.2.1" />
+		<PackageReference Include="DiffEngine" Version="15.3.0" />
 		<PackageReference Include="PublicApiGenerator" Version="11.1.0" />
 		<PackageReference Include="coverlet.msbuild" Version="6.0.2">
 			<PrivateAssets>all</PrivateAssets>