Add openmp version to detach TODO test

Author: NimishMishra

flang/test/Lower/OpenMP/Todo/task_detach.f90

@@ -1,6 +1,6 @@
-! REQUIRES: omp_lib
-! RUN: %not_todo_cmd bbc -emit-fir -fopenmp -o - %s 2>&1 | FileCheck %s
-! RUN: %not_todo_cmd %flang_fc1 -emit-fir -fopenmp -o - %s 2>&1 | FileCheck %s
+! REQUIRES: openmp_runtime
+! RUN: %not_todo_cmd bbc -emit-fir -fopenmp -fopenmp-version=50 -o - %s 2>&1 | FileCheck %s
+! RUN: %not_todo_cmd %flang_fc1 -emit-fir -fopenmp -fopenmp-version=50 -o - %s 2>&1 | FileCheck %s
 
 !===============================================================================
 ! `detach` clause