Bump Orc.Theming from 5.0.1 to 5.1.1 in /src

Bumps [Orc.Theming](https://github.com/wildgums/orc.Theming) from 5.0.1 to 5.1.1.
- [Changelog](https://github.com/WildGums/Orc.Theming/blob/develop/GitReleaseManager.yaml)
- [Commits](WildGums/Orc.Theming@5.0.1...5.1.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

src/Orc.Snapshots.Tests/Orc.Snapshots.Tests.csproj

@@ -24,7 +24,7 @@
     <PackageReference Include="NUnit" Version="4.2.2" PrivateAssets="all" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" PrivateAssets="all" />
     <PackageReference Include="Orc.Automation.Tests" Version="5.0.5" />
-    <PackageReference Include="Orc.Theming" Version="5.0.1" />
+    <PackageReference Include="Orc.Theming" Version="5.1.1" />
     <PackageReference Include="PublicApiGenerator" Version="11.1.0" PrivateAssets="all" />
     <PackageReference Include="Verify.NUnit" Version="27.0.1" />
   </ItemGroup>