chore(CI): deleting snyk action as github doesnt allow tokens to forks

Migrating to snyk webhooks

.github/workflows/Security.yml

@@ -1,20 +0,0 @@
-name: Security Flow
-
-on: 
-  push:
-   branches:
-    - master
-    - develop
-  pull_request:
-   branches:
-    - master
-    - develop
-jobs:
-  security:
-    runs-on: ubuntu-16.04
-    steps:
-      - uses: actions/checkout@master
-      - name: Run Snyk to check for vulnerabilities
-        uses: snyk/actions/node@master
-        env:
-          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}