Bump PublicApiGenerator from 11.3.0 to 11.4.0 in /src

Bumps [PublicApiGenerator](https://github.com/PublicApiGenerator/PublicApiGenerator) from 11.3.0 to 11.4.0.
- [Release notes](https://github.com/PublicApiGenerator/PublicApiGenerator/releases)
- [Commits](PublicApiGenerator/PublicApiGenerator@11.3.0...11.4.0)

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

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

src/Orc.Squirrel.Tests/Orc.Squirrel.Tests.csproj

@@ -21,7 +21,7 @@
     <PackageReference Include="ModuleInit.Fody" Version="2.1.1" PrivateAssets="all" />
     <PackageReference Include="NUnit" Version="4.3.2" PrivateAssets="all" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" PrivateAssets="all" />
-    <PackageReference Include="PublicApiGenerator" Version="11.3.0" PrivateAssets="all" />
+    <PackageReference Include="PublicApiGenerator" Version="11.4.0" PrivateAssets="all" />
     <PackageReference Include="Verify.NUnit" Version="28.9.0" />
   </ItemGroup>