dizzy: Using product 1.19 version (#478)

Signed-off-by: Matthias Wessendorf <mwessend@redhat.com>

Co-authored-by: Matthias Wessendorf <mwessend@redhat.com>

openshift/e2e-common.sh

@@ -100,7 +100,7 @@ function install_serverless(){
  header "Installing Serverless Operator"
  local operator_dir=/tmp/serverless-operator
  local failed=0
- git clone --branch release-1.18 https://github.com/openshift-knative/serverless-operator.git $operator_dir || return 1
+ git clone --branch release-1.19 https://github.com/openshift-knative/serverless-operator.git $operator_dir || return 1
  # unset OPENSHIFT_BUILD_NAMESPACE (old CI) and OPENSHIFT_CI (new CI) as its used in serverless-operator's CI
  # environment as a switch to use CI built images, we want pre-built images of k-s-o and k-o-i
  unset OPENSHIFT_BUILD_NAMESPACE