[OPIK-641] create guardrails integration

[alexkuzmik]

Details

Added the integration with guardrails.
After tracking the Guard instance, every validator starts producing traces with results to Opik. "pass" and "fail" tags are added to the corresponding traces based on the validation result.
Example:

from guardrails import Guard, OnFailAction
from guardrails.hub import CompetitorCheck, ToxicLanguage

import opik
from opik.integrations.guardrails.guardrails_tracker import track_guardrails

competitor_check = CompetitorCheck(
    ["Apple", "Microsoft", "Google"], on_fail=OnFailAction.NOOP
)
toxic_check = ToxicLanguage(
    threshold=0.5, validation_method="sentence", on_fail=OnFailAction.NOOP
)
guard: Guard = Guard().use_many(competitor_check, toxic_check)
guard = track_guardrails(guard, project_name="guardrails-example")

guard.validate(
    "An apple a day keeps a doctor away. This is good advice for keeping your health."
)  # Both the guardrails pass
    

Issues

Resolves #

Testing

integration tests are added

Documentation

docstrings are added

[alexkuzmik]

@japdubengsub the PR ready for review but the integration test will likely be updated. Current version pulls quite heavy dependencies that take 2.5 minutes to install.