Merge latest updates to Dendrite
Of note, this no longer builds the Dendrite polylith server, which we
never planned to use anyway
I want to make sure I didn't break the clientapi/routing/routing.go
redaction events, our code differs from Dendrite in that call path.
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Signed-off-by: Brian Meek <brian@hntlabs.com>
Co-authored-by: Tak Wai Wong <64229756+tak-hntlabs@users.noreply.github.com>
