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: I0a1783b101aa4e7d4b80fd5e1fc1b2beb86c5caa
diff --git a/ipmi.hpp b/ipmi.hpp
index 8194f0f..95683b9 100644
--- a/ipmi.hpp
+++ b/ipmi.hpp
@@ -20,6 +20,7 @@
 
 #include <ipmid/api-types.hpp>
 #include <ipmid/message.hpp>
+
 #include <optional>
 #include <span>