raise the minimum version of gotrue to 2.9.0

[KevYuen]

What kind of change does this PR introduce?

Bug fix

The proxy argument for SyncGoTrueClient was added in version 2.9.0

As a result, having a lower version than 2.9.0 will cause an error

https://github.com/supabase/auth-py/releases/tag/v2.9.0

What is the current behavior?

Currently having a lower version than gotrue==2.9.0, causes the following error:

File "/opt/venv/lib/python3.11/site-packages/supabase/_sync/auth_client.py", line 33, in __init__
   SyncGoTrueClient.__init__(
TypeError: SyncGoTrueClient.__init__() got an unexpected keyword argument 'proxy'

Please link any relevant issues here.

Related #949 but this issue is not fully resolved by raising the httpx version

What is the new behavior?

Minimum version of gotrue updated to v2.9.0

Feel free to include screenshots if it includes visual changes.

Additional context

Add any other context or screenshots.