Validator to provide warning message when job in a stage is build periodically

[VonnyJap]

What happened:

The current procedure for stages dictates that execution always initiates from the stage setup. Therefore, periodic builds of a job without a preceding stage setup job are not allowed.

What you expected to happen:

The validator needs to generate a warning message alerting users that including a job with periodic builds in a stage is not permitted.

How to reproduce it:

If a job with periodic builds is included in a stage, it can be demonstrated that the validator does not display warning messages.

[github-actions]

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_{🤖 By issues-similarity-analysis}