packaging: update dulwich to drop the certifi dependency on Windows The presence of `certifi` causes the system certificate store to be ignored, which was reported as a bug against TortoiseHg[1]. It was only pulled in on Windows because of `dulwich`, which was copied from the old TortoiseHg install scripts, in order to support `hg-git`. This version of `dulwich` raises the minimum `urllib3` to a version (1.25) that does certificate verification by default, without the help of `certifi`[2]. We already bundle a newer version of `urllib3`. Note that `certifi` can still be imported from the user site directory, if installed there. But the installer no longer disables the system certificates by default. [1] https://foss.heptapod.net/mercurial/tortoisehg/thg/-/issues/5825 [2] https://github.com/jelmer/dulwich/issues/1025

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# stack.py - Mercurial functions for stack definition

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#

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#  Copyright Olivia Mackall <olivia@selenic.com> and other

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#

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# This software may be used and distributed according to the terms of the

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# GNU General Public License version 2 or any later version.

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def getstack(repo, rev=None):

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    """return a sorted smartrev of the stack containing either rev if it is

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    not None or the current working directory parent.

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    The stack will always contain all drafts changesets which are ancestors to

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    the revision and are not merges.

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    """

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    if rev is None:

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        rev = b'.'

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    revspec = b'only(%s) and not public() and not ::merge()'

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    revisions = repo.revs(revspec, rev)

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    revisions.sort()

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    return revisions