disable cache for Docuseal fetch

[meonkeys]

I noticed my Docuseal card was showing "online" after I'd shut it down.

Might be from one of these? https://github.com/search?q=repo%3Adocusealco%2Fdocuseal%20cache%20control&type=code

and/or because /version is just a file?

Either way, this fixes it from the Homer side.

Description

This fixes invalid online/offline status for the Docusign card.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• I've read & comply with the contributing guidelines
• I have tested my code for new features & regressions on both mobile & desktop devices, using the latest version of major browsers. I did limited testing only
• I have made corresponding changes to the documentation (README.md). n/a
• I've checked my modifications for any breaking changes, especially in the config.yml file