Pin setup-envtest to last working commit

Change[0] in controller-runtime is causing our tests to fail with go version mismatch.

This version restriction should be removed once the issue is fixed in the controller-runtime

[0] kubernetes-sigs/controller-runtime#2693

Signed-off-by: Jiri Podivin <jpodivin@redhat.com>

Makefile

@@ -227,7 +227,7 @@ $(CONTROLLER_GEN): $(LOCALBIN)
 .PHONY: envtest
 envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
 $(ENVTEST): $(LOCALBIN)
-	test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest
+	test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@c7e1dc9
 
 .PHONY: ginkgo
 ginkgo: $(GINKGO) ## Download ginkgo locally if necessary.