Added partially extracted slots support for the GroupSlots

[NotBioWaste905]

Description

Added flag allow_partially_extracted to the GroupSlot class constructor. If True non extracted slots from Group Slot would not be overwritten with default values.

Checklist

• Manual testing
• Autotesting
• Linting
• Tutorials
• Documentation

[github-actions]

It appears this PR is a release PR (change its base from master if that is not the case).

Here's a release checklist:

• Update package version
• Update poetry.lock
• Change PR merge option
• Update template repo
• Search for objects to be deprecated
• Test parts not covered with pytest:
  • web_api tutorials
  • Test integrations with external services (telegram; stats)

[NotBioWaste905]

llm_response must inherit from BaseResponse

[RLKRo]

I don't like name regex in this tutorial.
The last request is very unintuitive ("Mike " with a space at the end).
I think it's better to use other types of data for tutorials that are more easily extracted.

For example, here I use email and bitcoin address which both have fairly unique regex (i.e. unlikely false positives -> more options with requests):
https://github.com/RLKRo/chatsky-ac-tests/blob/main/slot/test_data.json

(regex for these can be found here; although email regex is pretty long, this might be better)

Also, I don't think that success_only was really shown in the script and happy path.
It should show how extraction with success_only=False looks like (e.g. only pass email for person extraction and it should return Your username is None. Your email is None.).

[NotBioWaste905]

Consider adding way of defining minimal slots required for the group extraction to succeed
cnd.GroupSlotExtracted("person", required=["email"])