fix: fixed typo in SECUTITY.md

Created by: Amelia

What

fixed typo in the SECURITY.md file.

Why

the word Sharkey was missing a y (Sharke)

Checklist

• [V] Read the contribution guide
• [V] Test working in a local environment
• (If needed) Add story of storybook
• (If needed) Update CHANGELOG.md
• (If possible) Add tests