bazel coverage //... --features=race not respecting race="off" test targets

As the title describes, bazel seems to be executing all `go_tests` with race detection ON if `--features=race` whether or not the target has `race = "off"`.

This is a different behavior from `bazel test //... --features=race` since this respects the `race = "off"` attribute on the `go_test`.

Run `bazel coverage //... --features=race` and compare it with `bazel test //... --features=race`, focusing on go_test targets with `race = "off"`. Done means coverage respects that attribute in the same way as the test command and does not enable race detection for those targets.

Written by the indexing model from the issue text.