[Playbook] "Promote observable" component crashes

[Lhorus6]

Description

When I use the "Promote observable to indicator" component, it crashes if I don't have a score on my observables.

Environment

OCTI 6.0.7

Reproducible Steps

Steps to create the smallest reproducible scenario:

1. Create the playbooks describe in the screenshot below
2. Create a report
3. Create an observable without score
4. Add the observable to the report
5. Add the label "test" to the report
6. Wait the execution of the playbook and check the log of execution
   -> Error at the "promote observable" component

Additional information

When we try to create an indicator without a score (manually, in the GUI), the platform transparently sets 50. Perhaps this mechanism should be applied here too?

Screenshots

Playbooks

Error