Roomserver input backpressure metric
Roomserver input backpressure metric

Squashed commit of the following:

commit 56e934ac0aeedcfb2c072010959ba49734d4e0cb
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Fri Jul 2 09:39:30 2021 +0100

    Fix metric

commit 3911f3a0c17b164b012e881c085ceca30f5de408
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Fri Jul 2 09:36:29 2021 +0100

    Register correct metric

commit a9ddbfaed421538a701151801e9451198a8be4f3
Author: Neil Alexander <neilalexander@users.noreply.github.com>
Date:   Fri Jul 2 09:33:33 2021 +0100

    Try to capture RS input backpressure metric

matrix-org/dendrite,matrix-org/dendrite,matrix-org/dendrite,matrix-org/dendrite