Upload results even if regression tests fail

[BenWibking]

Description

Upload the test results even if a test fails. Currently, the pipeline is canceled if any of the tests fail, and the results aren't available on the website (https://quokka-astro.github.io/regression-testing-results/).

Documentation: https://learn.microsoft.com/en-us/azure/devops/pipelines/process/conditions?view=azure-devops

Related issues

N/A

Checklist

Before this pull request can be reviewed, all of these tasks should be completed. Denote completed tasks with an x inside the square brackets [ ] in the Markdown source below:

• I have added a description (see above).
• I have added a link to any related issues see (see above).
• I have read the Contributing Guide.
• I have added tests for any new physics that this PR adds to the code.
• I have tested this PR on my local computer and all tests pass.
• I have manually triggered the GPU tests with the magic comment /azp run.
• I have requested a reviewer for this PR.