Add CGO_ENABLED=0

images/prow-tests/Dockerfile

@@ -174,7 +174,7 @@ FROM external-go-latest AS external-go-gets
 ARG KUBETEST2_VERSION=d306c412d528f0a5dda4b6bd1c7550a905f5edb9
 ARG KUBETEST2_KOPS_VERSION=9b957a1d6189ee612506c9b6dc5b8b1a19e9c2aa # v1.25.0 release
 ARG KIND_VERSION=v0.18.0
-ARG KO_VERSION=v0.14.1
+ARG KO_VERSION=v0.13.0
 ARG PROTOC_GEN_GO_VERSION=v1.28.0
 ARG PROTOC_GEN_GOGOFASTER_VERSION=v1.3.2
 ARG GOTESTSUM_VERSION=v1.8.2
@@ -185,6 +185,9 @@ ARG JSONNET_VERSION=v0.18.0
 ARG COSIGN_VERSION=v1.13.0
 ARG TOOLBOX_VERSION=2051540f04c2a8fb5ad50c717345c2dd69a0b71e
 
+# Disable CGO libs to avoid error with too old version in base image
+ENV CGO_ENABLED=0
+
 # Extra tools through go install
 # These run using the golang image version of Go, not any defined by `gvm`
 RUN go install github.com/google/ko@${KO_VERSION}