[BREAKING CHANGE] Remove files from being attached to releases and instead use the static repo link

[othyn]

Description

Instead of attaching the files to each release, use the static repo release. This will free up the amount of attachments to releases unnecessarily, meaning should translations or fixed alternative timezones become a thing, we're not attaching an ungodly amount of files to each release.

Desired Behavior

Removal of assets (beyond the default) against releases.

Additional Context

Should help appease GitHub for the amount of files being hosted...

[othyn]

This will require a v3 release;

• Relevant notice in the changelog
• Relevant notice on the website detailing the change for existing users clearly
• Various change management aspects to consider, perhaps a deprecation window (modify calendar names for deprecated ones 'Deprecated - See website'?)