Don't use a `main()` in `hack/update-deps.sh`
Don't use a `main()` in `hack/update-deps.sh`

The construct

    if ! main; then
        # etc...
    fi

Will turn off `set -o errexit` inside of `main` by turning off the `ERR`
signal. If we still want the `set -o errexit` behavior in our script we
should just trap the error behavior on `ERR` ourselves.

Signed-off-by: Steve Kuznetsov <a7da0fca91d9933d2725d731a48cabdc9e8ffd7a@redhat.com>

kubernetes/test-infra,michelle192837/test-infra,cblecker/test-infra,cjwagner/test-infra,kubernetes/test-infra,ixdy/kubernetes-test-infra,abgworrall/test-infra,monopole/test-infra,krousey/test-infra,dims/test-infra,fejta/test-infra,mindprince/test-infra,jlowdermilk/test-infra,BenTheElder/test-infra,cjwagner/test-infra,BenTheElder/test-infra,spxtr/test-infra,brahmaroutu/test-infra,foxish/test-infra,monopole/test-infra,ixdy/kubernetes-test-infra,krzyzacy/test-infra,dims/test-infra,shyamjvs/test-infra,jlowdermilk/test-infra,krzyzacy/test-infra,shyamjvs/test-infra,fejta/test-infra,brahmaroutu/test-infra,mindprince/test-infra,lavalamp/test-infra,kargakis/test-infra,pwittrock/test-infra,krzyzacy/test-infra,cjwagner/test-infra,cjwagner/test-infra,krzyzacy/test-infra,BenTheElder/test-infra,ixdy/kubernetes-test-infra,foxish/test-infra,jlowdermilk/test-infra,jessfraz/test-infra,spxtr/test-infra,kubernetes/test-infra,kargakis/test-infra,krousey/test-infra,lavalamp/test-infra,jlowdermilk/test-infra,shyamjvs/test-infra,jlowdermilk/test-infra,monopole/test-infra,dims/test-infra,shyamjvs/test-infra,fejta/test-infra,pwittrock/test-infra,krousey/test-infra,pwittrock/test-infra,kubernetes/test-infra,shyamjvs/test-infra,kargakis/test-infra,abgworrall/test-infra,kubernetes/test-infra,BenTheElder/test-infra,krzyzacy/test-infra,foxish/test-infra,michelle192837/test-infra,lavalamp/test-infra,monopole/test-infra,krousey/test-infra,michelle192837/test-infra,fejta/test-infra,jessfraz/test-infra,jessfraz/test-infra,dims/test-infra,jessfraz/test-infra,cblecker/test-infra,lavalamp/test-infra,brahmaroutu/test-infra,abgworrall/test-infra,spxtr/test-infra,abgworrall/test-infra,mindprince/test-infra,dims/test-infra,fejta/test-infra,kubernetes/test-infra,abgworrall/test-infra,michelle192837/test-infra,brahmaroutu/test-infra,pwittrock/test-infra,michelle192837/test-infra,kargakis/test-infra,ixdy/kubernetes-test-infra,lavalamp/test-infra,krzyzacy/test-infra,cjwagner/test-infra,cjwagner/test-infra,michelle192837/test-infra,shyamjvs/test-infra,krousey/test-infra,jlowdermilk/test-infra,cblecker/test-infra,kargakis/test-infra,spxtr/test-infra,jessfraz/test-infra,BenTheElder/test-infra,monopole/test-infra,monopole/test-infra,cblecker/test-infra,ixdy/kubernetes-test-infra,dims/test-infra,foxish/test-infra,cblecker/test-infra,jessfraz/test-infra,brahmaroutu/test-infra,mindprince/test-infra,BenTheElder/test-infra,spxtr/test-infra,pwittrock/test-infra,fejta/test-infra,cblecker/test-infra,mindprince/test-infra,kargakis/test-infra,lavalamp/test-infra,brahmaroutu/test-infra,foxish/test-infra