📚 Documentation Issue

We have the old invite link to our deprecated Slack at various places in the repo.

Where to find the issue

git grep --break --heading --line-number --ignore-case -I 'https://join.slack.com/t/securecodebox/shared_invite/enQtNDU3MTUyOTM0NTMwLTBjOWRjNjVkNGEyMjQ0ZGMyNDdlYTQxYWQ4MzNiNGY3MDMxNThkZjJmMzY2NDRhMTk3ZWM3OWFkYmY1YzUxNTU'

Describe the issue

The link is outdated.

Suggested change

We should refer to https://owasp.org/slack/invite and the channel "project-securecodebox" or to https://owasp.slack.com/archives/C062TQANH3N.