Repo dispatch

[jburel]

The proposed changes allow to trigger a job in this repository when a PR is merged in one of the "upstream" repositories that the test_suite covers e.g. ome-zarr-py
It uses the repository dispatch event.

• An event run_test_suite is posted by the upstream repo when a PR is merged
• This repository catches it and installs the code from the upstream PR
• Run the corresponding tests from the ome_zarr_test_suite
• Insert a comment on the PR with link to the ome_zarr_test_suite job indicacting success or failure so we can track with job was run
• Create an issue with the bug label on the source repository if the job fails

[will-moore]

I don't understand every line, but I get the gist of it. Looks good.

[jburel]

Example of issue created ome/omero-ms-zarr#98. The issue was created even on success during the test

[joshmoore]

Few minor, mostly style and comprehension comments. Otherwise, looks good.

[jburel]

@joshmoore I have re-used the name and review the explanation. It will be good to have that in place so we can evaluate it with the coming merge of ome-zarr-py PRs

[jburel]

Merging so we can test with the upcoming ome-zarr-py PRs