proxy container config is created on server where CA should not be added to DB

[mcalmer]

What does this PR change?

Do not try to deploy the proxy CA for containerized proxy into DB.
This code is executed on the Server and not on the proxy.

GUI diff

No difference.

• DONE

Documentation

• No documentation needed: only internal and user invisible changes

• DONE

Test coverage

• No tests: already covered

• DONE

Links

See https://github.com/SUSE/spacewalk/issues/22046
Additional fix for #7267
Tracks https://github.com/SUSE/spacewalk/pull/22048

• DONE

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