Bump ProjectFiles from 1.3.0 to 1.3.1

---
updated-dependencies:
- dependency-name: ProjectFiles
  dependency-version: 1.3.1
  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

@@ -14,7 +14,7 @@
     <PackageVersion Include="NUnit3TestAdapter" Version="6.2.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.174" />
     <PackageVersion Include="Polyfill" Version="10.10.0" />
-    <PackageVersion Include="ProjectFiles" Version="1.3.0" />
+    <PackageVersion Include="ProjectFiles" Version="1.3.1" />
     <PackageVersion Include="Verify" Version="31.19.1" />
     <PackageVersion Include="Verify.NUnit" Version="31.19.1" />
     <PackageVersion Include="Verify.AngleSharp" Version="4.7.0" />