Bump golang from 1.19.2 to 1.19.3 (#200)

Bumps golang from 1.19.2 to 1.19.3.

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: ibm-ci-bot

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.19.2 as builder
+FROM golang:1.19.3 as builder
 ARG GOARCH
 
 WORKDIR /workspace