fix: use str type instead of uuid type in id property of identity model

[leynier]

Fix #155

[sourcery-ai]

Sourcery Code Quality Report

Merging this PR leaves code quality unchanged.

Quality metrics	Before	After	Change
Complexity	0.16 ⭐	0.16 ⭐	0.00
Method Length	69.33 🙂	69.33 🙂	0.00
Working memory	5.20 ⭐	5.20 ⭐	0.00
Quality	78.52% ⭐	78.52% ⭐	0.00%

Other metrics	Before	After	Change
Lines	144	144	0

Changed files	Quality Before	Quality After	Quality Change
gotrue/types.py	78.52% ⭐	78.52% ⭐	0.00%

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation

Legend and Explanation

The emojis denote the absolute quality of the code:

• ⭐ excellent
• 🙂 good
• 😞 poor
• ⛔ very poor

The 👍 and 👎 indicate whether the quality has improved or gotten worse with this pull request.

---

Please see our documentation here for details on how these metrics are calculated.

We are actively working on this report - lots more documentation and extra metrics to come!

Help us improve this quality report!

[symeneses]

That was fast @leynier, now it works 💃🏽