Update SECURITY.md

[Laurry-gee]

<-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? -->

Summary of the Pull Request

PR Checklist

• [x] Closes: #xxx
• [x] Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
• [x] Tests: Added/updated and all pass
• [x] Localization: All end user facing strings can be localized
• [x] Dev docs: Added/updated
• [x] New binaries: Added on the required places
  • [x] JSON for signing for new binaries
  • [x] WXS for installer for new binaries and localization folder
  • [x] YML for CI pipeline for new test projects
  • [x] YML for signed pipeline
• [x] Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

Validation Steps Performed