TLS plugin crashes when STARTTLS fails

[lnedry]

Describe the bug

TLS plugin crashes when STARTTLS fails.

Expected behavior

A clear and concise description of what you expected to happen.

A key/value pair should have been created in Redis. My guess is that this plugin needs to be refactored to use promises with calls to Redis.

Steps To Reproduce

Receive an email from a server that doesn't use STARTTLS.

System Info:

Haraka	Haraka.js — Version: 3.0.1
Node	v18.16.0
OS	Linux mx4 5.10.0-21-amd64 #1 SMP Debian 5.10.162-1 (2023-01-21) x86_64 GNU/Linux
openssl	OpenSSL 1.1.1n 15 Mar 2022

Additional context

Plugin tls failed: TypeError: server.notes.redis.setex is not a function
at exports.set_notls (/usr/lib/node_modules/Haraka/plugins/tls.js:78:24)
at Notes.nextOnce [as cleanUpDisconnect] (/usr/lib/node_modules/Haraka/plugins/tls.js:100:16)
at exports.hook_disconnect (/usr/lib/node_modules/Haraka/plugins/tls.js:133:26)
at plugins.run_next_hook (/usr/lib/node_modules/Haraka/plugins.js:535:28)
at callback (/usr/lib/node_modules/Haraka/plugins.js:488:32)
at exports.hook_disconnect (/usr/lib/node_modules/Haraka/plugins/process_title.js:179:5)
at plugins.run_next_hook (/usr/lib/node_modules/Haraka/plugins.js:535:28)
at plugins.run_hooks (/usr/lib/node_modules/Haraka/plugins.js:444:13)
at /usr/lib/node_modules/Haraka/connection.js:608:21
at Connection.reset_transaction (/usr/lib/node_modules/Haraka/connection.js:657:21)

[msimerson]

Fixed by #3178