ci-matrix-config.yml: Compile lib examples.

[LinjingZhang]

By creating this pull request you agree to the terms in CONTRIBUTING.md. https://github.com/Infineon/.github/blob/master/CONTRIBUTING.md --- DO NOT DELETE ANYTHING ABOVE THIS LINE ---

CONTRIBUTING.md also tells you what to expect in the PR process.

Description Provide the information we need to review your PR. What problem does the pull request solve? "Bug fix" is not a good description.

Related Issue If you opened an issue before creating the PR, point to it here.

Context What do we need to know about your development environment, tools, target, and so on. Screenshots are always helpful if there is a UI element to this PR.