Update test container go version to 1.15 (#15)

amitkrout · web-flow · commit 2d9eab114bbb · 2021-03-10T14:45:50.000+05:30
diff --git a/openshift-ci/build-root/Dockerfile b/openshift-ci/build-root/Dockerfile
@@ -1,5 +1,5 @@
 # Dockerfile to bootstrap build and test in openshift-ci
 
-FROM registry.svc.ci.openshift.org/openshift/release:golang-1.13
+FROM registry.svc.ci.openshift.org/openshift/release:golang-1.15
 
 RUN yum -y install dnf httpd-tools
