Correct sha256sum and strip_prefix of cudnn

Signed-off-by: Cheng Hang <[email protected]>

Author: Njuapp

WORKSPACE

@@ -76,8 +76,8 @@ http_archive(
 http_archive(
     name = "cudnn",
     build_file = "@//third_party/cudnn/archive:BUILD",
-    sha256 = "7f3fbe6201708de409532a32d647af6b4bdb10d7f045d557270549e286487289",
-    strip_prefix = "cudnn-linux-x86_64-8.4.1.114_cuda11.4-archive",
+    sha256 = "ec96d2376d81fca42bdd3d4c3d705a99b29a065bab57f920561c763e29c67d01",
+    strip_prefix = "cudnn-linux-x86_64-8.4.1.50_cuda11.6-archive",
     urls = [
         "https://developer.nvidia.com/compute/cudnn/secure/8.4.1/local_installers/11.6/cudnn-linux-x86_64-8.4.1.50_cuda11.6-archive.tar.xz",
     ],