Update TFRT dependency to use revision
http://github.com/tensorflow/runtime/commit/af2213b972c9f736109d4249089c9398c09a8add.

PiperOrigin-RevId: 447922123
diff --git a/third_party/tf_runtime/workspace.bzl b/third_party/tf_runtime/workspace.bzl
index 72bde17..b4b6c9d 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 = "695811ce9834ba33fb9eb46f88e19267505f3899"
-    TFRT_SHA256 = "9039de550bce3d82473bed477399051aeffebe0f8b42333dc8986b4abc81d355"
+    TFRT_COMMIT = "af2213b972c9f736109d4249089c9398c09a8add"
+    TFRT_SHA256 = "ce588cd5aa843316c6b759315cbc0f018be3c4535ad7ef7d83a6bb49e6d3051b"
 
     tf_http_archive(
         name = "tf_runtime",