Add more logs for CI config external files V2
What does this MR do and why?
This is the second attempt of !102638 (merged), which was reverted (!103045 (merged)).
In this MR, I also separated context and content validations.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.
Related to #367899 (closed)
Edited by Furkan Ayhan