[email protected]: Update checkver to new release format

[jack-mil]

Glow hasn't been updated in a while because their release format changed.

This PR makes it work again

• [x] I have read the Contributing Guide.

[github-actions[bot]]

All changes look good.

Wait for review from human collaborators.

glow

• [x] Description
• [x] License
• [x] Hashes
• [x] Checkver
• [x] Autoupdate
• [x] Autoupdate Hash Extraction