tests: dispose of resources, add tests for maintainer, and clean up mock names

src/SanctionsSearch.Worker.Tests/Integration/DatabaseMaintainerTests.cs

@@ -1,6 +1,6 @@
 namespace SanctionsSearch.Worker.Tests.Integration;
 
-public class DatabaseMaintainerTests : DatabaseTest
+public class DatabaseMaintainerTests : DatabaseTest, IDisposable
 {
   private const string TestSdnCsv = """
     6906,"AL-IRAQI, Abd al-Hadi","individual","SDGT",-0- ,-0- ,-0- ,-0- ,-0- ,-0- ,-0- ,"DOB 1961; POB Mosul, Iraq; nationality Iraq; Gender Male."
@@ -279,4 +279,12 @@ public class DatabaseMaintainerTests : DatabaseTest
       }
     });
   }
+
+  public void Dispose()
+  {
+    _databaseMaintainer.Dispose();
+    _mockHttp.Dispose();
+
+    GC.SuppressFinalize(this);
+  }
 }

src/SanctionsSearch.Worker.Tests/Integration/DatabaseTest.cs

@@ -25,6 +25,7 @@ public class DatabaseTest : IAsyncLifetime
   public virtual async Task DisposeAsync()
   {
     await _appDbContext.DisposeAsync();
+    _loggerFactory.Dispose();
 
     SqliteConnection.ClearAllPools();