[Conduit] Fix internal client API Traefik config

Add project source url to synapse reverse proxy companion

Fixup for d9598f0bbd

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3247#issuecomment-2067207227

Provoked by: https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3247#issuecomment-2067207227

fix(hookshot): incorrect Redis port

The default Redis port is 6379, not 6739.

chore(deps): update nginx docker tag to v1.25.5

Related to:

- c203bef912
- https://github.com/Awesome-Technologies/synapse-admin/issues/468

Related to:

- https://github.com/matrix-org/matrix-hookshot/pull/902
- https://github.com/matrix-org/matrix-hookshot/releases/tag/5.3.0
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3281

chore(deps): update halfshot/matrix-hookshot docker tag to v5.3.0

chore(deps): update registry.gitlab.com/etke.cc/buscarron docker tag to v1.4.1

chore(deps): update ghcr.io/element-hq/synapse docker tag to v1.105.0

chore(deps): update dock.mau.dev/mautrix/signal docker tag to v0.6.0

chore(deps): update dock.mau.dev/mautrix/meta docker tag to v0.3.0

chore(deps): update dock.mau.dev/mautrix/gmessages docker tag to v0.4.0

chore(deps): update dock.mau.dev/mautrix/whatsapp docker tag to v0.10.7

exim-relay: fix dkim permissions, fix sender address

Resolve Synology DSM 7.2 Docker Command Issue

This also removes the condition that made it use `latest` when
self-building is enabled.

v0.1.4 is expected to build correctly now, given that this issue is fixed:
https://github.com/matrix-org/rust-synapse-compress-state/issues/134

chore(deps): update dependency prometheus to v2.51.2-0

chore(deps): update dependency grafana to v10.4.2-0

chore(deps): update matrixdotorg/sygnal docker tag to v0.14.1

chore(deps): update matrixdotorg/dendrite-monolith docker tag to v0.13.7

I believe this wiring had gotten lost at some point before.

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/3199