ci(json-schema-check): improve readibility and output helpful debug info

[xmfcx]

Description

• This PR makes it easier to find the source of errors in the checks.
• Also makes it more clear on what exact files are checked against which exact schemas.
• Also converts the bash one-liner to a python script for maintainability.

Tests performed

Temporarily created a tag named vTempTestJson to test it from Universe.

Before

• https://github.com/autowarefoundation/autoware.universe/actions/runs/7979187696/job/21793290925#step:3:42

After

• https://github.com/autowarefoundation/autoware.universe/actions/runs/7981506848/job/21793322599#step:3:43

Effects on system behavior

Colorful outputs!

Pre-review checklist for the PR author

The PR author must check the checkboxes below when creating the PR.

• I've confirmed the contribution guidelines.
• The PR follows the pull request guidelines.

In-review checklist for the PR reviewers

The PR reviewers must check the checkboxes below before approval.

• The PR follows the pull request guidelines.

Post-review checklist for the PR author

The PR author must check the checkboxes below before merging.

• There are no open discussions or they are tracked via tickets.

After all checkboxes are checked, anyone who has write access can merge the PR.

[xmfcx]

Sorry @VRichardJP for tagging you, I saw the name Vincent in the git blame and added you. But it was Ambroise Vincent :D

[xmfcx]

@ambroise-arm this is ready for review 🙇

[ambroise-arm]

It looks much better than my minimal implementation!

[xmfcx]

Thank you for the prompt review!