lint

Merge pull request #4806 from AkihiroSuda/go1.26 #2399

Job	Run time
project checks / commits, licenses...	1m 9s
other / yaml \| shell	6s
go / windows	2m 29s
go / linux (go canary)	7s
go / linux	2m 20s
go / darwin	2m 17s
build for / go canary	7s
go / freebsd	2m 21s
build for / go 1.25	7m 30s
build for / go 1.26	7m 42s
	26m 8s

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