Bump Bullseye from 3.3.0 to 3.4.0 in /build (#340)

Bumps [Bullseye](https://github.com/adamralph/bullseye) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/adamralph/bullseye/releases)
- [Changelog](https://github.com/adamralph/bullseye/blob/master/CHANGELOG.md)
- [Commits](adamralph/bullseye@3.3.0...3.4.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

build/build.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Bullseye" Version="3.3.0" />
+    <PackageReference Include="Bullseye" Version="3.4.0" />
     <PackageReference Include="SimpleExec" Version="6.2.0" />
   </ItemGroup>