update guide to 2022.03.1 release

This release updates the guide to use 2022.03.1 release

Signed-off-by: Tarun Pothulapati <tarun@gitpod.io>

Author: Pothulapati

Dockerfile

@@ -9,7 +9,7 @@ RUN apk add --no-cache \
     gettext \
     openssl
 
-ARG GITPOD_VERSION="2022.03.0"
+ARG GITPOD_VERSION="2022.03.1"
 ARG CLOUD_SDK_VERSION=351.0.0
 ARG HELM_VERSION=v3.6.3