clang-format: copy latest and re-format

clang-format-16 has some backwards incompatible changes that require
additional settings for best compatibility and re-running the formatter.
Copy the latest .clang-format from the docs repository and reformat the
repository.

Change-Id: I3942bdbbb0fc2d46d755a74f481bb44fa63dc486
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/gpio-util/gpio.hpp b/gpio-util/gpio.hpp
index bcb036c..46b6fba 100644
--- a/gpio-util/gpio.hpp
+++ b/gpio-util/gpio.hpp
@@ -62,8 +62,7 @@
      */
     GPIO(const std::string& device, gpioNum_t gpio, Direction direction) :
         device(device), gpio(gpio), direction(direction)
-    {
-    }
+    {}
 
     /**
      * Sets the GPIO value