Bump Swashbuckle.AspNetCore from 6.1.4 to 6.1.5 in /Tests.Unit

Bumps [Swashbuckle.AspNetCore](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 6.1.4 to 6.1.5.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](domaindrivendev/Swashbuckle.AspNetCore@v6.1.4...v6.1.5)

---
updated-dependencies:
- dependency-name: Swashbuckle.AspNetCore
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

EmbyStat.Web/EmbyStat.Web.csproj

@@ -40,7 +40,7 @@
     <PackageReference Include="NLog.Web.AspNetCore" Version="4.13.0" />
     <PackageReference Include="Rollbar.NetCore.AspNet" Version="4.0.3" />
     <PackageReference Include="Rollbar.PlugIns.NLog" Version="4.0.3" />
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.1.4" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.1.5" />
   </ItemGroup>
 
   <ItemGroup>