Update ci (!90)

## What is the bug
Running pipelines on images cannot do tests with OpenACC.
## How do you fix it
Change the CI configuration to using the `levante` shared runner. This runner submits jobs on Levante directly with the CI script.  
`Check typos` CI is also fixed by specifying the conda channel to search for the package.

Merged-by: Jonas Jucker <jonas.jucker@env.ethz.ch>
Changelog: bugfix