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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  $ hg init a

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  $ cd a

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  $ touch a; hg commit -qAm_

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  $ hg bookmark $(for i in $($TESTDIR/seq.py 0 20); do echo b$i; done)

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  $ hg clone . ../b -q

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  $ cd ../b

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Checking that when lookup multiple bookmarks in one go, if one of them

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fails (thus causing the sshpeer to be stopped), the errors from the

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further lookups don't result in tracebacks.

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  $ hg pull -r b0 -r nosuchbookmark $(for i in $($TESTDIR/seq.py 1 20); do echo -r b$i; done) ssh://user@dummy/$(pwd)/../a

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  pulling from ssh://user@dummy/$TESTTMP/b/../a

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  abort: unknown revision 'nosuchbookmark'

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  [255]