Bump Swashbuckle.AspNetCore in /test/IntegrationTests (#1110)

Bumps [Swashbuckle.AspNetCore](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 6.8.0 to 6.8.1.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](domaindrivendev/Swashbuckle.AspNetCore@v6.8.0...v6.8.1)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/Authorization/Altinn.Platform.Authorization.csproj

@@ -34,7 +34,7 @@
     <PackageReference Include="Microsoft.IdentityModel.Protocols.OpenIdConnect" Version="8.1.0" />
     <PackageReference Include="Microsoft.FeatureManagement" Version="3.5.0" />
     <PackageReference Include="Npgsql" Version="8.0.4" />
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.8.0" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.8.1" />
     <PackageReference Include="Swashbuckle.AspNetCore.Annotations" Version="6.8.1" />
     <PackageReference Include="Swashbuckle.AspNetCore.Filters" Version="8.0.2" />
     <PackageReference Include="System.Text.Json" Version="8.0.4" />