clang-format: update latest spec and reformat

Copy the latest format file from the docs repository and apply.

Change-Id: Iac96affe709a51dd865117d006cb033cf5c624b1
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/extensions/openpower-pels/extended_user_data.hpp b/extensions/openpower-pels/extended_user_data.hpp
index 07f9969..086dc9b 100644
--- a/extensions/openpower-pels/extended_user_data.hpp
+++ b/extensions/openpower-pels/extended_user_data.hpp
@@ -144,9 +144,9 @@
      * @return The JSON as a string if a parser was found,
      *         otherwise std::nullopt.
      */
-    std::optional<std::string>
-        getJSON(uint8_t creatorID,
-                const std::vector<std::string>& plugins) const override;
+    std::optional<std::string> getJSON(
+        uint8_t creatorID,
+        const std::vector<std::string>& plugins) const override;
 
     /**
      * @brief Shrink the section