Add @deqiangc as a CODEOWNER for the CI directories. (#825)

Co-authored-by: deqiangc <86809673+deqiangc@users.noreply.github.com>
diff --git a/CODEOWNERS b/CODEOWNERS
index 1471d5d..8a352ad 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -1,4 +1,4 @@
 *          @tensorflow/micro
 
-/.github/  @advaitjain
-/ci/       @advaitjain
+/.github/  @advaitjain @deqiangc
+/ci/       @advaitjain @deqiangc