feature: integrates spandrel for upscaling #858

Job	Run time
publish-docs	0s
Build Wheel	11s
test-gpu	11m 57s
lint	1m 0s
test-non-gpu (3.10, ubuntu-latest)	2m 31s
type-check	3m 5s
test-non-gpu (3.11, ubuntu-latest)	2m 28s
Smoketest (Conda, Python 3.10, ubuntu-latest)	5m 36s
Smoketest (Python 3.10, ubuntu-latest)	5m 12s
Smoketest (Conda, Python 3.10, windows-latest)	3m 26s
Smoketest (Python 3.10, windows-latest)	3m 53s
Smoketest (Conda, Python 3.10, macos-latest)	5m 55s
Smoketest (Python 3.10, macos-latest)	15m 59s
Smoketest (Conda, Python 3.11, ubuntu-latest)	5m 38s
Smoketest (Python 3.11, ubuntu-latest)	5m 37s
Smoketest (Conda, Python 3.11, windows-latest)	3m 27s
Smoketest (Python 3.11, windows-latest)	2m 50s
Smoketest (Conda, Python 3.11, macos-latest)	22m 36s
Smoketest (Python 3.11, macos-latest)	18m 12s
	1h 59m 33s

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