pw_tls_client: Run buildifier

Change-Id: I801e036effce9f9cc306b3916e809f6de12c899a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/50420
Pigweed-Auto-Submit: Rob Mohr <mohrr@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Reviewed-by: Yecheng Zhao <zyecheng@google.com>
diff --git a/pw_tls_client/BUILD b/pw_tls_client/BUILD
index 01fa582..5239c8f 100644
--- a/pw_tls_client/BUILD
+++ b/pw_tls_client/BUILD
@@ -36,12 +36,12 @@
         "//pw_result",
         "//pw_status",
         "//pw_stream",
-    ]
+    ],
 )
 
 pw_cc_library(
     name = "pw_tls_client",
-    deps = [ ":pw_tls_client_facade" ],
+    deps = [":pw_tls_client_facade"],
 )
 
 # TODO(zyecheng): Add a "backend_multiplexer" target once BoringSSL/MbedTLS is