bazel: Run buildifier

Change-Id: Ib62ef8a92a2cba08cea4e568c5d997879b31f161
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/52781
Pigweed-Auto-Submit: Rob Mohr <mohrr@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Reviewed-by: Alexei Frolov <frolv@google.com>
diff --git a/pw_thread/BUILD b/pw_thread/BUILD
index a069b82..28a4d76 100644
--- a/pw_thread/BUILD
+++ b/pw_thread/BUILD
@@ -165,20 +165,20 @@
 
 pw_cc_library(
     name = "snapshot",
-    hdrs = [
-        "public/pw_thread/snapshot.h"
-    ],
     srcs = [
-        "snapshot.cc"
+        "snapshot.cc",
+    ],
+    hdrs = [
+        "public/pw_thread/snapshot.h",
     ],
     deps = [
         ":util",
-        "//pw_thread:protos",
         "//pw_bytes",
         "//pw_function",
+        "//pw_log",
         "//pw_protobuf",
         "//pw_status",
-        "//pw_log",
+        "//pw_thread:protos",
     ],
 )