Lint

Metal backend: Add gated delta rule kernel for linear attention #70016

Job	Run time
android-java-format	14s
Get changed files / get-changed-files	4s
link-check / lint-file-size	10s
link-check / lint-urls	12s
link-check / lint-xrefs	11s
lintrunner	43s
lintrunner-mypy	2m 28s
	4m 2s

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