Fix problems with cruise-config encoding

[cinex-ru]

Issue: #10895

Description:
Fix problems with cruise-config encoding when saving from admin panel and from task.

[chadlwilson]

Hey there! Any reason you decided to close this PR?

I think you're right that there is likely a problem here on Windows where the (Java) default encoding is not UTF-8. We'd need to think carefully about where/how to address it as changing the behaviour may break backwards compatibility for some folks where we change the default interpretation from cp-1252, and they have certain mismatched characters.

[cinex-ru]

t there is likely a problem here on Windows where the (Java) default encoding is not UTF-8. We'd need to think carefully about where/how to address it as changing the behaviour may break backwards compatibility for some folks where we change the default interpretation from cp-1252, and they have certain mism

Hello.
I found one more related problem and need some time to rework and test this PR. Hope it will be ready today.

[chadlwilson]

OK. Yeah, we'd ideally want some unit tests too, although acknowledge that it's a bit difficult in some of these areas.

[cinex-ru]

OK. Yeah, we'd ideally want some unit tests too, although acknowledge that it's a bit difficult in some of these areas.

Yeah, feel like can't be sure now without testing.

[cinex-ru]

OK. Yeah, we'd ideally want some unit tests too, although acknowledge that it's a bit difficult in some of these areas.

I finished but without tests yet. Checked only with manual testing. If thats ok, i can create new PR.