Use 'new' expression in places where the type is evident for content (#2590)

* Content.Client

* Content.Benchmarks

* Content.IntegrationTests

* Content.Server

* Content.Server.Database

* Content.Shared

* Content.Tests

* Merge fixes

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Client/UserInterface/CreditsWindow.cs

@@ -20,7 +20,7 @@ namespace Content.Client.UserInterface
     {
         [Dependency] private readonly IResourceCache _resourceManager = default!;
 
-        private static readonly Dictionary<string, int> PatronTierPriority = new Dictionary<string, int>
+        private static readonly Dictionary<string, int> PatronTierPriority = new()
         {
             ["Nuclear Operative"] = 1,
             ["Syndicate Agent"] = 2,