Rework vulnerability handling (#1584)

* Delete vulnerability_report.yml

* Update config.yml

* Update SECURITY.md

* Revert

Co-authored-by: Dorukyum <[email protected]>

Author: Lulalaby

.github/ISSUE_TEMPLATE/vulnerability_report.yml

@@ -10,5 +10,5 @@
 ## Reporting a Vulnerability
 
 If you find a vulnerability you have two ways to report it:
-- Write us on https://pycord.dev/discord
-- Open an [issue](https://github.com/Pycord-Development/pycord/issues/new/choose)
+- Write a dm to one of our core developers on https://pycord.dev/discord
+- Write an email to admin@pycord.dev