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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https://bz.mercurial-scm.org/842

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  $ hg init

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  $ echo foo > a

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  $ hg ci -Ama

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  adding a

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  $ hg up -r0000

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  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

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  $ echo bar > a

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Should issue new head warning:

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  $ hg ci -Amb

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  adding a

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  created new head

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  $ hg up -r0000

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  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

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  $ echo stuffy > a

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Should not issue new head warning:

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  $ hg ci -q -Amc

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  $ hg up -r0000

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  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

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  $ echo crap > a

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  $ hg branch testing

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  marked working directory as branch testing

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  (branches are permanent and global, did you want a bookmark?)

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Should not issue warning:

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  $ hg ci -q -Amd

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