Fix Python 2 installation script by using UTF-8 to decode in get-poetry.py

[chrisburr]

Pull Request Check List

Resolves: #5989

I know Python 2.7 is no longer supported but I think the fix is sufficiently trivial that it might be worth considering regardless?

[finswimmer]

Hey @chrisburr,

thanks a lot for your contribution 👍 We really appreciate it 🙏

However, we will not merge your suggestion for several reasons:

• The get-poetry.py script is deprecated for more than one year.
• This installer cannot be used to install the current stable version of Poetry.
• Only the outdated and no longer supported 1.1 version can be installed with it.
• Any Poetry version >=1.0.8 can be installed with the recommended installer.
• We will remove this installer script soon from the repository Removal of get-poetry.py #6377

Making changes to this script might send the false signal to other users, as they might think it is under active development.

If you still need this installer for any reasons, it is recommended to store a local copy of it.

Best regards,
fin swimmer

[github-actions]

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