Enable test ownership validation test in pre-submit (#87310)

diff --git a/.ci.yaml b/.ci.yaml
index ca560f6..39de948 100644
--- a/.ci.yaml
+++ b/.ci.yaml
@@ -262,6 +262,16 @@
       - packages/flutter_tools/
       - bin/
 
+  - name: Linux test_ownership
+    builder: Linux test_ownership
+    bringup: true
+    properties:
+      tags: >
+        ["framework","hostonly","shard"]
+    scheduler: luci
+    runIf:
+      - .ci.yaml
+
   - name: Linux tool_tests_general
     builder: Linux tool_tests_general
     properties:
diff --git a/TESTOWNERS b/TESTOWNERS
index 8937a25..1270bfb 100644
--- a/TESTOWNERS
+++ b/TESTOWNERS
@@ -219,3 +219,4 @@
 # web_tool_tests @zanderso @flutter/tool
 # fuchsia_precache @zanderso @flutter/tool
 # skp_generator @Hixie
+# test_ownership @keyonghan