Aiosql

Update GitHub CI scripts and checks.

- add support for attributes in queries with `:param.attribute`
- parameter `attribute` controls how the dot (`"."`) is substitude, default is `"__"`.
use _None_ to disable the feature.

- add `kwargs_only` parameter
- upgrade github ci action versions
- refactor `Queries`

- fix `$` value handling under `dict_row`, plus minimal test
- improve type declarations
- CI run `pyright`

- improve handling of asynchronous update return
- improve pg8000 test connection resilience

Various minor changes for Python 3.12.