Dockerfile: bump golang version to 1.19

The golang version needs to be updated due to a security bug.
See https://bugzilla.redhat.com/show_bug.cgi?id=2112085

Resolves: rhbz#2112085

Signed-off-by: Guillaume Abrioux <[email protected]>

Author: guits

Dockerfile

@@ -1,6 +1,6 @@
 # Build stage 1
 
-FROM openshift/golang-builder:rhel_8_golang_1.16 AS builder
+FROM openshift/golang-builder:rhel_8_golang_1.19 AS builder
 
 COPY $REMOTE_SOURCE $REMOTE_SOURCE_DIR