Bump bunit from 2.4.2 to 2.5.3

---
updated-dependencies:
- dependency-name: bunit
  dependency-version: 2.5.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -23,7 +23,7 @@
     <PackageVersion Include="Oqtane.Shared" Version="$(OqtaneVersion)" />
     <PackageVersion Include="TUnit" Version="1.9.2" />
     <PackageVersion Include="TUnit.Playwright" Version="1.9.2" />
-    <PackageVersion Include="bunit" Version="2.4.2" />
+    <PackageVersion Include="bunit" Version="2.5.3" />
     <PackageVersion Include="Bogus" Version="35.6.1" />
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />