Integrate LLVM at llvm/llvm-project@246b57cb2086

Updates LLVM usage to match
[246b57cb2086](llvm/llvm-project@246b57cb2086)

PiperOrigin-RevId: 694340984

Author: tensorflower-gardener

third_party/llvm/workspace.bzl

@@ -4,8 +4,8 @@ load("//third_party:repo.bzl", "tf_http_archive")
 
 def repo(name):
     """Imports LLVM."""
-    LLVM_COMMIT = "c6f3b7bcd0596d30f8dabecdfb9e44f9a07b6e4c"
-    LLVM_SHA256 = "13a1b39cfe51421fb1fd15828b76766d7680d854fc1039254b37f3f824ab47b7"
+    LLVM_COMMIT = "246b57cb2086b22ad8b41051c77e86ef478053a1"
+    LLVM_SHA256 = "2d46c080deb2cb6dbb9420a334be231040487bbfe87b5ed0b90bb69cac423500"
 
     tf_http_archive(
         name = name,