Bump Go in Dockerfile

Signed-off-by: Dale Haiducek <[email protected]>

Author: dhaiducek

build/Dockerfile

@@ -1,7 +1,7 @@
 # Stage 1: Use image builder to build the target binaries
 # Copyright Contributors to the Open Cluster Management project
 
-FROM golang:1.19 AS builder
+FROM golang:1.20 AS builder
 
 ENV COMPONENT=governance-policy-propagator
 ENV REPO_PATH=/go/src/github.com/open-cluster-management/${COMPONENT}