Only ensure Go minor version

Signed-off-by: Stefan Büringer [email protected]

Author: sbueringer

hack/ensure-go.sh

@@ -19,7 +19,9 @@ set -o nounset
 set -o pipefail
 
 # MIN_GO_VERSION is the minimum, supported Go version.
-MIN_GO_VERSION="go${MIN_GO_VERSION:-1.20.8}"
+# Note: Enforce only the minor version as we can't guarantee that
+# the images we use in ProwJobs already use the latest patch version.
+MIN_GO_VERSION="go${MIN_GO_VERSION:-1.20}"
 
 # Ensure the go tool exists and is a viable version.
 verify_go_version() {