Update TFRT dependency to use revision
http://github.com/tensorflow/runtime/commit/44f3a73d3162ebae8e64fe265c2690943db910d7.

PiperOrigin-RevId: 449066939
diff --git a/third_party/tf_runtime/workspace.bzl b/third_party/tf_runtime/workspace.bzl
index a5e5ee9..a118f40 100644
--- a/third_party/tf_runtime/workspace.bzl
+++ b/third_party/tf_runtime/workspace.bzl
@@ -6,8 +6,8 @@
     """Imports TFRT."""
 
     # Attention: tools parse and update these lines.
-    TFRT_COMMIT = "e1e64a45b138980a6d8c125bacc81f22142d2b53"
-    TFRT_SHA256 = "5afd4500e88c75188e29e68273438b849d57d800ed982bbe292325148ad3e016"
+    TFRT_COMMIT = "44f3a73d3162ebae8e64fe265c2690943db910d7"
+    TFRT_SHA256 = "0ad95265f9d9211dcdce1ca487ae073b58b8ae54ad5c2f73480957428b960d69"
 
     tf_http_archive(
         name = "tf_runtime",