ci: generate auth secret in production (#1681)

* ci: generate auth secret in production

* refactor: remove no longer needed auth-secret from e2e test

* fix: remove static auth secret

scripts/generateRandomSecureKey.js

@@ -0,0 +1,7 @@
+// This script generates a random secure key with a length of 64 characters
+// This key is used to encrypt and decrypt the integration secrets for auth.js
+// In production it is generated in run.sh and stored in the environment variables ENCRYPTION_KEY / AUTH_SECRET
+// during runtime, it's also stored in a file.
+
+const crypto = require("crypto");
+console.log(crypto.randomBytes(32).toString("hex"));