feat: add ignoreloopvar option

[ldez]

Fixes #34

I didn't create something based on build tags because inside golangci-lint we need to be on compatible with go.21 builds.

[ldez]

@kunwardeep do you plan to create a release?

[kunwardeep]

Done @ldez

[AxelPrel]

im currently adding this linter to my stack with go 1.22+. i did not see the ignore-loop-var:true option in golangCI linter settings page(https://golangci-lint.run/usage/linters/#paralleltest) but i added it anyway in my .golangci.yml config file and it seems to work.
i think this config should work just like the intrange linter (https://github.com/ckaznocha/intrange) , meaning if golangCI detect a 1.22+ go version it will automatically set ignore-loop-var: true

[ldez]

ignoreloopvar is not an option for golangci-lint because golangci-lint automatically enables it based on the Go version.

i added it anyway in my .golangci.yml config file and it seems to work.

The option is ignored from the configuration.

golangci/golangci-lint#4405