Cleanup (#1405)

* Cleanup script builder

* Cleanup serializer

* Cleanup options

src/NServiceBus.Persistence.Sql.TransactionalSession/SqlPersistenceOpenSessionOptions.cs

@@ -26,8 +26,7 @@ public SqlPersistenceOpenSessionOptions(
                 Metadata.Add(tenantInformation.tenantIdHeaderName, tenantInformation.tenantId);
             }
 
-            Extensions.Set(new IncomingMessage(SessionId, headers ?? new Dictionary<string, string>(0),
-                Array.Empty<byte>()));
+            Extensions.Set(new IncomingMessage(SessionId, headers ?? [], Array.Empty<byte>()));
         }
     }
 }

src/ScriptBuilder/ScriptGenerator.cs

@@ -25,10 +25,10 @@ public ScriptGenerator(string assemblyPath, string destinationDirectory,
         this.assemblyPath = assemblyPath;
         this.overwrite = overwrite;
         this.clean = clean;
-        this.dialectOptions = dialectOptions ?? new List<BuildSqlDialect>();
+        this.dialectOptions = dialectOptions ?? [];
         this.logError = logError;
         this.promotionFinder = promotionFinder;
-        this.scriptBasePath = Path.Combine(destinationDirectory, "NServiceBus.Persistence.Sql");
+        scriptBasePath = Path.Combine(destinationDirectory, "NServiceBus.Persistence.Sql");
     }
 
     public static void Generate(string assemblyPath, string targetDirectory,

src/SqlPersistence/Serializer.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
 using System.Text;
 using Newtonsoft.Json;
@@ -15,10 +14,7 @@ static Serializer()
         {
             Formatting = Formatting.Indented,
             DefaultValueHandling = DefaultValueHandling.Ignore,
-            Converters = new List<JsonConverter>
-            {
-                new ReadOnlyMemoryConverter()
-            }
+            Converters = [new ReadOnlyMemoryConverter()]
         };
         JsonSerializer = JsonSerializer.Create(settings);
     }