Use go list -mod=mod

Signed-off-by: Tiger Kaovilai <tkaovila@redhat.com>

Makefile

@@ -173,9 +173,15 @@ $(ENVTEST): ## Download envtest-setup locally if necessary.
 .PHONY: envtest
 envtest: $(ENVTEST)
 
+# If test results in prow are different, it is because the environment used.
+# You can simulate their env by running
+# docker run --platform linux/amd64 -w $PWD -v $PWD:$PWD -it registry.ci.openshift.org/ocp/builder:rhel-8-golang-1.20-openshift-4.14 sh -c "make test"
+# where the image corresponds to the prow config for the test job, https://github.com/openshift/release/blob/master/ci-operator/config/openshift/oadp-operator/openshift-oadp-operator-master.yaml#L1-L5
+# to login to registry cluster follow https://docs.ci.openshift.org/docs/how-tos/use-registries-in-build-farm/#how-do-i-log-in-to-pull-images-that-require-authentication
+# If bin/ contains binaries of different arch, you may remove them so the container can install their arch.
 .PHONY: test
 test: vet envtest ## Run Go linter and unit tests and check Go code format and if api and bundle folders are up to date.
-	KUBEBUILDER_ASSETS="$(ENVTESTPATH)" go test -mod=mod $(shell go list ./... | grep -v /tests/e2e) -coverprofile cover.out
+	KUBEBUILDER_ASSETS="$(ENVTESTPATH)" go test -mod=mod $(shell go list -mod=mod ./... | grep -v /tests/e2e) -coverprofile cover.out
 	@make fmt-isupdated
 	@make api-isupdated
 	@make bundle-isupdated