Release v2.11.5

Add ignore phrases functionality to guardrail policies (#5667)

* Add ignore phrases functionality to guardrail policies

- Implemented validation for ignore phrases in GuardrailPoliciesAction, including checks for maximum count, length, and regex validity.
- Updated the GuardrailPolicies component to handle ignore phrases in the UI.
- Introduced a new ExceptionsStep component for managing ignore phrases during policy creation.
- Enhanced the backend to support ignore phrases in guardrail policy processing and validation.
- Added tests for ignore phrase functionality in the validator package.

* Update akto-endpoint-shield dependency to latest version in go.mod and go.sum

---------

Co-authored-by: nayan <nayan@akto.io>