Conda warnings in CI

[xalelax]

Description

We do see some warnings, which seem to come from implicitly adding the default channel in conda

Steps to reproduce

Check the annotations panel on any recent e2e test

Tesseract version

v0.8.4

[jacanchaplais]

Do you know which GitHub workflow file is triggering this?

[dionhaefner]

Should be this: https://github.com/pasteurlabs/tesseract-core/blob/main/.github/workflows/run_tests.yml#L214

[dionhaefner]

Fixed in #210