Adding New Check: IPv6 Address Validation

[mwojtyczka]

Changes

Adds checks for the following:

• Validate IPv6 addresses: is_valid_ipv6_address
• Check if IPV6 is within a CIDR block: is_ipv6_address_in_cidr
• Updated required python version to 3.12 to be compatible with test clusters used for automated tests. This requires recreating hatch env locally going forward:

brew install python@3.12
make clean
make dev

Incorporate changes from: #498

Linked issues

Resolves #466

Tests

• manually tested
• added unit tests
• added integration tests
• added end-to-end tests

[Copilot]

Pull Request Overview

This pull request adds IPv6 address validation functionality to the codebase, implementing two key validation functions for IPv6 addresses and CIDR block checking. The PR also updates the Python version requirement.

• Adds IPv6 address validation with is_valid_ipv6_address function
• Adds IPv6 CIDR block checking with is_ipv6_address_in_cidr function
• Updates Python version requirement from 3.10 to 3.11

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[github-actions]

✅ 308/308 passed, 3 flaky, 1 skipped, 2h36m0s total

Flaky tests:

• 🤪 test_load_checks_from_table_with_unresolved_for_each_column (2.695s)
• 🤪 test_e2e_workflow (12m59.159s)
• 🤪 test_e2e_workflow (7m16.363s)

_{Running from acceptance #2372}

[Copilot]

Pull Request Overview

Copilot reviewed 16 out of 16 changed files in this pull request and generated 3 comments.

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}