Bump SimpleExec from 11.0.0 to 12.0.0 in /build

Bumps [SimpleExec](https://github.com/adamralph/simple-exec) from 11.0.0 to 12.0.0.
- [Changelog](https://github.com/adamralph/simple-exec/blob/main/CHANGELOG.md)
- [Commits](adamralph/simple-exec@11.0.0...12.0.0)

---
updated-dependencies:
- dependency-name: SimpleExec
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

build/build.csproj

@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="Bullseye" Version="4.2.1" />
-    <PackageReference Include="SimpleExec" Version="11.0.0" />
+    <PackageReference Include="SimpleExec" Version="12.0.0" />
     <PackageReference Include="System.Text.Json" Version="7.0.3" />
   </ItemGroup>