Fix: NotifyAsync Crashes if there are multiple DB calls in handlers (#156)

* sys: v4 codeql does noot exist

* fix: v3 also desn't exist

* feature: hand-rolled interfaces

* feature: an implemented mediator

* feature: superior folder structure

feature: start removing

* feature: start unpicking mediatr

* sys: version that builds without mediatr

* feature: remove remaining mediators

* fix: some DI errors

* fix: DI scope and generic handling

* refactor: better naming

* refactor: docstrings

* refactor: fail-fast

* docs: docstrings for DI

* feature: basic .NET 10 integration

* sys: some version upgrades

* sys: more package upgrades

* sys: crosscuts package upgrade

* sys: minor package upgrade for fluent assertions

* sys: efcore updates

* sys: more version upgrades

* sys: .NET 10 upgrade

* wip: rabbit upgrade

* sys: move mediator to correct file location

* sys: move file

* refactor: remove redundant code

* fix: references

* sys: remove rabbit

* fix: deprecated code

* sys: update tests to handle existing race condition

* sys: upgrade sonar runner

* sys: ensure consistent sonar scan use

* sys: test reporter version

* refactor: remove redundant package

* fix: simultaneous DB calls result in notify failing

Author: nickskliar-davies

src/OneBeyond.Studio.Core.Mediator/Mediator.cs

@@ -75,7 +75,10 @@ public async Task NotifyAsync<TNotification>(TNotification notification, Cancell
 
         var delegateList = receivers.Select(r => r.HandleAsync(notification, cancellationToken));
 
-        await Task.WhenAll(delegateList);
+        foreach (var action in delegateList)
+        {
+            await action;
+        }
     }
 
     /// <inheritdoc/>