message: chore: update SECURITY.md
diff: ## Supported Versions
  | Version | Supported |
  -| ---------------- | ------------------ |
  -| >= 2.0.0-beta.70 | :white_check_mark: |
  -| < 2.0.0-beta.70 | :x: |
  +| ----------------- | ------------------ |
  +| >= 2.0.0-beta.108 | :white_check_mark: |
  +| < 2.0.0-beta.108 | :x: |
  ## Reporting a Vulnerability
  