docker: fix comment for ubuntu 18 deprecation

[iMichka]

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes? Here's an example.
• Have you successfully run brew style with your changes locally?
• Have you successfully run brew typecheck with your changes locally?
• Have you successfully run brew tests with your changes locally?

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[Bo98]

It was deprecated with 4.4.0. Plan was to remove it with 4.5.0, unless it's already causing problems.

[MikeMcQuaid]

👍🏻 but only when next release will be 4.4 (which could be the next release!)

[iMichka]

I misread the comment in the code then, it said >=4.4.0, but it probably was meant to be >4.4.0?

@MikeMcQuaid you mean 4.5 will be the next release?

[Bo98]

Yeah, the comment has a typo - it's meant to say >=4.5. The first version with it was 4.4.0.

[MikeMcQuaid]

Yes, @Bo98 is right, sorry for confusion @iMichka!

[iMichka]

@Bo98 @MikeMcQuaid let's just fix the comment then

[MikeMcQuaid]

Thanks!