Fix util/pki test which relied on hardcoded CSR common name
Fix util/pki test which relied on hardcoded CSR common name

Signed-off-by: joshvanl <525f14a1257c4e494fcfb5b458ace90de1e9c01d@gmail.com>

jetstack/cert-manager,cert-manager/cert-manager,jetstack-experimental/cert-manager,cert-manager/cert-manager,jetstack-experimental/cert-manager,jetstack-experimental/cert-manager,jetstack/cert-manager,jetstack/cert-manager,cert-manager/cert-manager