Update FP16 dependency

Pull a performance fix for fp16_alt_to_fp32_value

PiperOrigin-RevId: 306197664
diff --git a/WORKSPACE b/WORKSPACE
index f350234..ad69e29 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -26,10 +26,10 @@
 # FP16 library, used for half-precision conversions
 http_archive(
     name = "FP16",
-    strip_prefix = "FP16-ba1d31f5eed2eb4a69e4dea3870a68c7c95f998f",
-    sha256 = "9764297a339ad73b0717331a2c3e9c42a52105cd04cab62cb160e2b4598d2ea6",
+    strip_prefix = "FP16-3c54eacb74f6f5e39077300c5564156c424d77ba",
+    sha256 = "0d56bb92f649ec294dbccb13e04865e3c82933b6f6735d1d7145de45da700156",
     urls = [
-        "https://github.com/Maratyszcza/FP16/archive/ba1d31f5eed2eb4a69e4dea3870a68c7c95f998f.tar.gz",
+        "https://github.com/Maratyszcza/FP16/archive/3c54eacb74f6f5e39077300c5564156c424d77ba.zip",
     ],
     build_file = "@//third_party:FP16.BUILD",
 )