Missing Service Desk translation for any language: the sentence "Your request was ..... and the status changed to...." is not translated whenever a request is approved

Description

When a Service Desk request is approved, the following sentence is added to the history of the request:
"Your request was ..... and the status changed to...."

This sentence does not seem to be translated in any language (I tested the German, French and Spanish languages so far).

Steps to Reproduce

• Create a Service Desk request that has an approval step
• Approve the Service Desk request
• Open this request from the customer portal
• Change the language of the customer who is viewing the request from the portal in German, then French, then Spanish

Observed

One sentence is still in English, as shown in the 3 screenshots below:

Expected

This sentence should be translated