Steps to reproduce

Omit the Tag for a Pester describe block and trigger the Linux CI build process.

Describe "Sample test" {
}

See Draft PR #9192 for example.

Expected behavior

Build process should fail for Windows, macOS and Linux.
ci.psm calls Get-PesterTag from build.psm1 to check if all test blocks have a valid Tag.

Actual behavior

Linux CI build succeeds and tests are executed without any error.
See Draft PR #9192 for reference.

Environment data