chore(infra): Re-enable MemoryCache for authorized parties (#1532)

<!--- Provide a general summary of your changes in the Title above -->

## Description

<!--- Describe your changes in detail -->

## Related Issue(s)

- #1226

## Verification

- [ ] **Your** code builds clean without any errors or warnings
- [ ] Manual testing done (required)
- [ ] Relevant automated test added (if you find this hard, leave it and
we'll help out)

## Documentation

- [ ] Documentation is updated (either in `docs`-directory, Altinnpedia
or a separate linked PR in
[altinn-studio-docs.](https://github.com/Altinn/altinn-studio-docs), if
applicable)

src/Digdir.Domain.Dialogporten.Infrastructure/InfrastructureExtensions.cs

@@ -146,8 +146,6 @@ internal static void AddInfrastructure_Internal(InfrastructureBuilderContext bui
         })
         .ConfigureFusionCache(nameof(AuthorizedPartiesResult), new()
         {
-            // Testing https://github.com/digdir/dialogporten/issues/1226
-            SkipMemoryCache = true,
             // We keep authorized parties in a separate cache key, as this originates from a different API
             // and has lees cardinality than the dialog authorization cache (only one per user). We therefore
             // allow a memory cache for this.