prodvider: fix build after k8s update, add to CI presubmit

Change-Id: I5a3794541853abd1fb16e67e285edfa29c2f5cf7
diff --git a/ci_presubmit.sh b/ci_presubmit.sh
index 5abaf10..1739e5d 100755
--- a/ci_presubmit.sh
+++ b/ci_presubmit.sh
@@ -19,3 +19,6 @@
 kubecfg version
 prodaccess --help 2>/dev/null
 bazel run //cluster/clustercfg smoketest
+
+# Test critical services.
+bazel build //cluster/prodvider