Feature: Add SARIF Support for URL Checker

[dwertent]

Description

This PR adds SARIF support to the urlchecker-action. This enhancement aims to improve the integration of URL-checking results with GitHub Actions, providing more detailed and actionable reports.

How to Use

To enable SARIF output in the GitHub Action workflow, update your workflow file to include the --save results.sarif option:

- name: URL Checker
  uses: urlstechie/urlchecker-action@master
  with:
    save: results.sarif
    format: sarif

Linked PR

This PR is linked to urlchecker-python PR #91, which introduces SARIF support in the core urlchecker-python library. The combination of these PRs ensures that URL-checking results can be saved in SARIF format, enhancing static analysis and reporting in CI/CD workflows.