Fix Build Reporting

[AndrewKahr]

Changes

• Make discord a global instance to reduce the amount of connects called

Checklist

• Read the contribution guide and accept the code of conduct
• Readme (updated or not needed)
• Tests (added, updated or not needed)

[webbertakken]

Ah yes, the discord limits versus amount of invocations of the versioning backend.

This is a challenge inherent to running it the backend as cloud functions triggered as a cron and triggering based on db changes as well as rest calls; we need to minimise the number of connections to discord and always make sure we disconnect. That's why it used to be a singleton.

Sorry I didn't catch it as part of the review of your previous PR.

Nice fix.