Bump dscanner hash to a version that recognizes AliasAssign

[RazvanN7]

This should unblock @andralex 's AliasAssign PRs.

[dlang-bot]

Thanks for your pull request and interest in making D better, @RazvanN7! We are looking forward to reviewing it, and you should be hearing from a maintainer soon.
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[RazvanN7]

For some reason, github created 2 identical PRs. When I closed one of them, the tests failed for the other. I simply closed the 2 and reopened a new PR: #8136