Update TEST_MAPPING

Test: None

Bug: 233924440
Change-Id: I61af32b865f81f864d6523bcf8994585a5c4bca6
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 2f7de78..f1f81cf 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -1,5 +1,10 @@
 // Generated by update_crate_tests.py for tests that depend on this crate.
 {
+  "postsubmit": [
+    {
+      "name": "libcert_request_validator_tests"
+    }
+  ],
   "presubmit": [
     {
       "name": "libcert_request_validator_tests"