Notify about method usage in called process JUEL expressions

[ingorichtsmeier]

Describe the bug

If the camunda 7 diagram contains a call activity using a JUEL expression in the called element, no Task is displayed on the diagram check.
As Task is reported for method calls in conditions on sequence flows.

Steps to reproduce

Migrate a diagram with a call activity and a called element like ${mybean.getTheCalledElement()}.

Expected Behaviour

A Task is displayed in the check result: "Method invocation is not possible in FEEL."

Library version

0.8.1

Camunda Platform 7 version

all

Camunda Platform 8 version

all