style: pre-commit.ci fixes

Author: pre-commit-ci[bot]

include/cliutils/custom_util.hpp

@@ -4,9 +4,6 @@
 namespace cliutils {
 
 // Returns the reverse of a given string
-inline std::string reverse_string(const std::string &input) {
-    return std::string(input.rbegin(), input.rend());
-}
-
-}
+inline std::string reverse_string(const std::string &input) { return std::string(input.rbegin(), input.rend()); }
 
+}  // namespace cliutils