Bump NUnit to 4.4.0

---
updated-dependencies:
- dependency-name: NUnit
  dependency-version: 4.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: NUnit
  dependency-version: 4.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

WoofWare.Myriad.Plugins.Attributes/Test/WoofWare.Myriad.Plugins.Attributes.Test.fsproj

@@ -19,7 +19,7 @@
     <ItemGroup>
         <PackageReference Include="ApiSurface" Version="4.1.22" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1"/>
-        <PackageReference Include="NUnit" Version="4.3.2"/>
+        <PackageReference Include="NUnit" Version="4.4.0"/>
         <PackageReference Include="NUnit3TestAdapter" Version="5.0.0"/>
     </ItemGroup>
 

WoofWare.Myriad.Plugins.Test/WoofWare.Myriad.Plugins.Test.fsproj

@@ -57,7 +57,7 @@
     <PackageReference Include="FsCheck" Version="3.3.0" />
     <PackageReference Include="FsUnit" Version="7.1.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
-    <PackageReference Include="NUnit" Version="4.3.2" />
+    <PackageReference Include="NUnit" Version="4.4.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />
     <PackageReference Include="WoofWare.Expect" Version="0.8.1" />
   </ItemGroup>