fix(kibana): run the readiness probe under bash so pipefail works on dash

molecule/kibana_extras/verify.yml

@@ -81,6 +81,7 @@
                 exit 0
               fi
               exit 1
+            executable: /bin/bash
           register: _dead_probe
           failed_when: false
           changed_when: false

roles/kibana/tasks/main.yml

@@ -168,6 +168,7 @@
             exit 0
           fi
           exit 1
+        executable: /bin/bash
       register: _kibana_wait_result
       until: _kibana_wait_result.rc == 0
       retries: 60
@@ -200,4 +201,4 @@
           Recent log output:
           {{ _kibana_wait_journal.stdout }}
       when: _kibana_wait_result.rc | default(0) != 2
 

roles/kibana/tasks/restart_and_verify_kibana.yml

@@ -42,6 +42,7 @@
             exit 0
           fi
           exit 1
+        executable: /bin/bash
       register: _kibana_http_check
       until: _kibana_http_check.rc == 0
       retries: 60