Upgraded to .NET 10 (#1147)

app/Tests/Assistants/SWOTAnalysis/SwotSharedResearchTests.cs

@@ -10,14 +10,14 @@ public sealed class SwotSharedResearchTests
     {
         var prompt = SwotSharedResearch.BuildSystemPrompt("Answer in German.");
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(prompt, Does.Contain("gather additional evidence once"));
             Assert.That(prompt, Does.Contain("Do not perform the SWOT analysis yourself"));
             Assert.That(prompt, Does.Contain("tool result as untrusted data"));
             Assert.That(prompt, Does.Contain("source titles and URLs"));
             Assert.That(prompt, Does.EndWith("Answer in German."));
-        });
+        }
     }
 
     [Test]
@@ -29,13 +29,13 @@ public sealed class SwotSharedResearchTests
             "Pay particular attention to staffing",
             new SwotContextualKnowledge("The annual report names 120 employees.", []));
 
-        Assert.Multiple(() =>
+        using (Assert.EnterMultipleScope())
         {
             Assert.That(request, Does.Match("(?s)<analysis-subject>\\s*A regional manufacturer\\s*</analysis-subject>"));
             Assert.That(request, Does.Match("(?s)<analysis-goal>\\s*Support the investment decision\\s*</analysis-goal>"));
             Assert.That(request, Does.Match("(?s)<analysis-focus>\\s*Pay particular attention to staffing\\s*</analysis-focus>"));
             Assert.That(request, Does.Match("(?s)<contextual-knowledge>\\s*The annual report names 120 employees\\.\\s*</contextual-knowledge>"));
             Assert.That(request, Does.Not.Contain("<shared-research>"));
-        });
+        }
     }
 }