feat: add `ml/base/loss/float64/log-gradient` #30114

Job	Run time
Check for EditorConfig label	0s
Check for Git History label	0s
Check for contributor guidelines label	0s
Check for spam label	0s
Check for stale label	0s
Check for project conventions label	-6s
Check for already resolved label	-8s
	-14s

Provide feedback