Check if generated files are up to date fails because generate_sbom.py tries to fetch wrong URL

[StanFromIreland]

Bug report

Bug description:

Fail examples:

https://github.com/python/cpython/actions/runs/13638516783/job/38122954008

https://github.com/python/cpython/actions/runs/13638516783/job/38122954008?pr=130691#step:10:663

cpython/Tools/build/generate_sbom.py

Line 366 in 3a7f17c

f"https://github.com/python/cpython-source-deps/archive/refs/tags/{externals_name_to_git_tag[package['name']]}.tar.gz"

cpython/Tools/build/generate_sbom.py

Lines 175 to 178 in 3a7f17c

	if "checksums" not in package or "CI" in os.environ:
	download_location = package["downloadLocation"]
	resp = urllib.request.urlopen(download_location)
	error_if(resp.status != 200, f"Couldn't access URL: {download_location}'")

[hugovk]

http.client.RemoteDisconnected: Remote end closed connection without response

This looks like a temporary network error?

I restarted the job and it passed this time:

https://github.com/python/cpython/actions/runs/13638516783/job/38125989013

[StanFromIreland]

It's probably not our fault then, I'll report to gh :-)