fix: Fix infinite recursion in Debug::fmt method

[0xkazak]

Description

I noticed an issue where the Debug::fmt method was calling itself, causing infinite recursion. To resolve this, I replaced the recursive call with one that properly formats the error details. Now, instead of calling Debug::fmt(self, f), it correctly calls self.detail.fmt(f) to print the error details.

This should prevent any stack overflow issues and ensure that errors are printed correctly.

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PR author checklist:

• Added changelog entry, using unclog.
• Added tests: integration (for Hermes) or unit/mock tests (for modules).
• Linked to GitHub issue.
• Updated code comments and documentation (e.g., docs/).
• Tagged one reviewer who will be the one responsible for shepherding this PR.

Reviewer checklist:

• Reviewed Files changed in the GitHub PR explorer.
• Manually tested (in case integration/unit/mock tests are absent).

[0xkazak]

ljoss17, pls check it.

[ljoss17]

Hey @0xkazak do you have a way of reproducing the infinite recursion?