fix: exclude samples and tutorials from lint formatting

Author: lqiu96

.kokoro/build.sh

@@ -231,7 +231,10 @@ case ${JOB_TYPE} in
                     dir=$(dirname "${dir}")
                 done
                 if [ -f "${dir}/pom.xml" ] && [ "${dir}" != "." ]; then
-                    changed_modules+=("${dir}")
+                    # Exclude sample and tutorial modules as they are not in the default reactor
+                    if [[ "${dir}" != *"samples"* ]] && [[ "${dir}" != *"tutorials"* ]]; then
+                        changed_modules+=("${dir}")
+                    fi
                 fi
             fi
         done <<< "${changed_file_list}"