Enable usetesting in golangci.yml #12179
Description
usetesting linter is automatically enabled when Go 1.24 is used.
This linter diagnose the calls that can be replaced by functions defined in testing package. e.g. os.Setenv -> testing.Setenv.
It is what we're going to do after #12128 will be merged since the diff is very large.
The issue aims to enable usetesting linter and the fix all diagnostics to pass all.
/help