fix: use user configured installdir for C4D submitter location

What was the problem/requirement? (What/Why)

When attempting to install with a non-default installation directory, the Cinema 4D installer still used the default directory,

What was the solution? (How)

The cinema_4d_submitter_installdir variable was being set based on the installdir variable during initializationActionList, before the user had been able to input a custom installdir.

What is the impact of this change?

The functionality works as expected,

How was this change tested?

User install with default directory
User install with non-default directory
System install with default directory
System install non-default directory

Submitted a physical render from each.

Have you run the unit tests? No, N/A

Did you run the "Job Bundle Output Tests"? If not, why not? If so, paste the test results here.

I ran the physical job bundle output test

Was this change documented?

No, N/A

Is this a breaking change?

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aws-deadline / deadline-cloud-for-cinema-4d