clang-format: re-format for clang-18

clang-format-18 isn't compatible with the clang-format-17 output, so we
need to reformat the code with the latest version.  The way clang-18
handles lambda formatting also changed, so we have made changes to the
organization default style format to better handle lambda formatting.

See I5e08687e696dd240402a2780158664b7113def0e for updated style.
See Iea0776aaa7edd483fa395e23de25ebf5a6288f71 for clang-18 enablement.

Change-Id: I7b90380845efee6bf6a1fe342a793d71aa9ff181
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/phosphor-regulators/test/test_utils.hpp b/phosphor-regulators/test/test_utils.hpp
index e04dd6d..b3df87a 100644
--- a/phosphor-regulators/test/test_utils.hpp
+++ b/phosphor-regulators/test/test_utils.hpp
@@ -55,9 +55,8 @@
  * @param railIDs rail IDs (optional)
  * @return Device object
  */
-inline std::unique_ptr<Device>
-    createDevice(const std::string& id,
-                 const std::vector<std::string>& railIDs = {})
+inline std::unique_ptr<Device> createDevice(
+    const std::string& id, const std::vector<std::string>& railIDs = {})
 {
     // Create Rails (if any)
     std::vector<std::unique_ptr<Rail>> rails{};