added pause for rhel9 aswell

Signed-off-by: Mark Bolwell <mark.bollyuk@gmail.com>

.github/workflows/linux_benchmark_testing.yml

@@ -83,16 +83,16 @@ jobs:
 
 # Centos 7 images take a while to come up insert sleep or playbook fails
 
-      - name: Check if test os is rhel7
+      - name: Check if test os is rhel7 or rhel9
         working-directory: .github/workflows
         id: test_os
         run: >-
-          echo "::set-output name=RHEL7::$(
-          grep -c RHEL7 OS.tfvars
+          echo "::set-output name=Pause::$(
+          grep -c "RHEL\(7\|9\)" OS.tfvars
           )"
 
-      - name: if RHEL7 - Sleep for 60 seconds
-        if: steps.test_os.outputs.RHEL7 >= 1
+      - name: if RHEL(7|9) - Sleep for 60 seconds
+        if: steps.test_os.outputs.Pause >= 1
         run: sleep 60s
         shell: bash