Fix CI status badge

[yvan-sraka]

What does this PR accomplish?

• 📙 Documentation

Changes proposed by this PR:

Fix CI status badge:

📜 Checklist

• [x] Test coverage is excellent
• [x] All unit tests pass
• [x] The juice-examples run just fine
• [x] Documentation is thorough, extensive and explicit

[drahnr]

Hey @yvan-sraka - good catch! I think the link should be slightly different from what your patch applies, since that only represents part of the CI checks and would require a change in the CI tasks to do a combination of the default, cuda, and native back ends.

[drahnr]

Alternatively, adding all batches would also work :)