Update check-format.sh to prefer clang-format-18 (#6890)

Co-authored-by: Amaury Chamayou <[email protected]>

Author: eddyashton

scripts/check-format.sh

@@ -29,10 +29,12 @@ else
 fi
 
 CLANG_FORMAT=clang-format
-if [ -x "$(command -v clang-format-11)" ]; then
-    CLANG_FORMAT=clang-format-11
+if [ -x "$(command -v clang-format-18)" ]; then
+    CLANG_FORMAT=clang-format-18
 fi
 
+echo "Using $(${CLANG_FORMAT} --version)"
+
 file_name_regex="^[[:lower:]0-9_]+$"
 unformatted_files=""
 badly_named_files=""