Add CI dependency

What is the new feature

This MR adds dependencies for CI so that build_and_test is not blocked by build for the NAG compiler.

How is it implemented

Add "needs" keyword.

Mandatory steps before review

• Gitlab CI passes (Hint: use make format for linting)
• New feature is covered by additional unit tests
• Mark the merge request as ready by removing Draft:

Mandatory steps before merge

• Reviewed by a maintainer
• Incorporate review suggestions

You are not supposed to merge this request by yourself, the maintainers of fortan-support take care of this action!