Audit service rework (#19346)

* Introduce new AuditEntryService

- Moved logic related to the IAuditEntryRepository from the AuditService to the new service
- Introduced new Async methods
  - Using ids (for easier transition from the previous Write method)
  - Using keys
- Moved and updated integration tests related to the audit entries to a new test class `AuditEntryServiceTests`
- Added unit tests class `AuditEntryServiceTests` and added a few unit tests
- Added migration to add columns for `performingUserKey` and `affectedUserKey` and convert existing user ids
- Adjusted usages of the old AuditService.Write method to use the new one (mostly notification handlers)

* Audit service rework

- Added new async and paged methods
- Marked (now) redundant methods as obsolete
- Updated all of the usages to use the non-obsolete methods
- Added unit tests class `AuditServiceTests` and some unit tests
- Updated existing integration test

* Apply suggestions from code review

* Small improvement

* Update src/Umbraco.Core/Services/AuditService.cs

* Some minor adjustments following the merge

* Delete unnecessary file

* Small cleanup on the tests

src/Umbraco.Infrastructure/BackgroundJobs/Jobs/LogScrubberJob.cs

@@ -21,18 +21,17 @@ namespace Umbraco.Cms.Infrastructure.BackgroundJobs.Jobs;
 /// </remarks>
 public class LogScrubberJob : IRecurringBackgroundJob
 {
-    public TimeSpan Period { get => TimeSpan.FromHours(4); }
-
-    // No-op event as the period never changes on this job
-    public event EventHandler PeriodChanged { add { } remove { } }
-
-
     private readonly IAuditService _auditService;
     private readonly ILogger<LogScrubberJob> _logger;
     private readonly IProfilingLogger _profilingLogger;
     private readonly ICoreScopeProvider _scopeProvider;
     private LoggingSettings _settings;
 
+    public TimeSpan Period => TimeSpan.FromHours(4);
+
+    // No-op event as the period never changes on this job
+    public event EventHandler PeriodChanged { add { } remove { } }
+
     /// <summary>
     ///     Initializes a new instance of the <see cref="LogScrubberJob" /> class.
     /// </summary>
@@ -48,7 +47,6 @@ public class LogScrubberJob : IRecurringBackgroundJob
         ILogger<LogScrubberJob> logger,
         IProfilingLogger profilingLogger)
     {
-
         _auditService = auditService;
         _settings = settings.CurrentValue;
         _scopeProvider = scopeProvider;
@@ -57,17 +55,14 @@ public class LogScrubberJob : IRecurringBackgroundJob
         settings.OnChange(x => _settings = x);
     }
 
-    public Task RunJobAsync()
+    public async Task RunJobAsync()
     {
-
         // Ensure we use an explicit scope since we are running on a background thread.
         using (ICoreScope scope = _scopeProvider.CreateCoreScope())
         using (_profilingLogger.DebugDuration<LogScrubberJob>("Log scrubbing executing", "Log scrubbing complete"))
         {
-            _auditService.CleanLogs((int)_settings.MaxLogAge.TotalMinutes);
+            await _auditService.CleanLogsAsync((int)_settings.MaxLogAge.TotalMinutes);
             _ = scope.Complete();
         }
-
-        return Task.CompletedTask;
     }
 }