fix: update sd15 weight links #936

Job	Run time
lint	2m 47s
Build Wheel	9s
test-gpu	10m 43s
publish-docs	1m 55s
test-non-gpu (3.10, ubuntu-latest)	4m 29s
type-check	7m 8s
test-non-gpu (3.11, ubuntu-latest)	4m 22s
Smoketest (Python 3.10, ubuntu-latest)	1m 19s
Smoketest (Conda, Python 3.10, ubuntu-latest)	1m 38s
Smoketest (Python 3.10, windows-latest)	1m 22s
Smoketest (Conda, Python 3.10, windows-latest)	2m 16s
Smoketest (Python 3.10, m2-16gb)	29s
Smoketest (Conda, Python 3.10, m2-16gb)	1m 47s
Smoketest (Python 3.11, ubuntu-latest)	1m 24s
Smoketest (Conda, Python 3.11, ubuntu-latest)	1m 42s
Smoketest (Python 3.11, windows-latest)	1m 2s
Smoketest (Python 3.11, m2-16gb)	29s
Smoketest (Conda, Python 3.11, windows-latest)	3m 12s
Smoketest (Conda, Python 3.11, m2-16gb)	1m 56s
	50m 9s

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