Ignore tests that use `t.Setenv` or `t.Chdir`

[abemedia]

Both t.Setenv and t.Chdir are not compatible with t.Parallel. The linter should detect their use and omit tests that have them.

See the docs:

https://pkg.go.dev/testing#T.Setenv

Because Setenv affects the whole process, it cannot be used in parallel tests or tests with parallel ancestors.

https://pkg.go.dev/testing#T.Chdir

Because Chdir affects the whole process, it cannot be used in parallel tests or tests with parallel ancestors.

[kunwardeep]

I would welcome a PR

[IlyasYOY]

I'd be glad to solve this right after solving t.Parallel in helpers.