[RFC] Documentation/conf.py: fix copyright years

[Sascha Hauer]

Hi Antony,

On Thu, Sep 15, 2022 at 09:18:20AM +0300, Antony Pavlov wrote:
> On Mon, 12 Sep 2022 11:46:27 +0300
> Antony Pavlov <antonynpavlov at gmail.com> wrote:
> 
> Hi Sascha!
> 
> Here is the barebox documentation generated in my gitlab CI/CD system with 'make docs':
>   https://frantony.gitlab.io/-/barebox/-/jobs/3029093142/artifacts/Documentation/html/index.html
> 
> and this is the barebox documentation from barebox.org:
>   https://www.barebox.org/doc/latest/index.html
> 
> The index.html pages look different (different color scheme is used, no barebox logo in the left top
> conner after 'make docs' etc).
> 
> Could you please publish an instruction how to reproduce barebox html documentation from barebox.org?

We have the theme here internally. Sorry, I can't give you any
instructions on how to reproduce the docs as found on the website.
What do you need them for?

Sascha

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