Action tries downloading schedule from repository that no longer exists

[mstimberg]

@savente93 deleted their schedule repository after this action was moved under the scientific-python umbrella, but the action still refers to it:

spec0-action/action.yaml

Lines 49 to 54 in c9ba4f0

	- name: Fetch Schedule from release
	uses: robinraju/release-downloader@daf26c55d821e836577a15f77d86ddc078948b05 # v1.12
	with:
	repository: "savente93/SPEC0-schedule"
	latest: true
	fileName: "schedule.json"

The action is therefore not working at the moment.

[nabobalis]

Thanks, I wil try to fix that.