Fix netlify previews (#8330)
Fix netlify previews (#8330)

Update the name of the workflow in the workflow_run trigger as
it was changed when adding cypress tests.

This will upload the preview build after running the cypress tests:
unsure if this is what we want or not. The preview build will be
slower to appear, but it does sort of make sense to only get a
preview buuild if the tests pass. If not, we might be able to do
this by doing a repository dispatch after the preview build.
matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk