Explain the option of manually defining your public IP in the documentation for Coturn

Explicitly refer users to the relevant roles file so people know where to find the additional configuration options.

I was very surprised by the fact that a rather important configuration for coturn was "hidden" in the Hosts file, but not mentioned here. 

Therefore my suggestion is to explicitly mention it here, as I believe that is that natural for people to look.

Bump ansible-community/ansible-lint-action from 6.16.0 to 6.17.0

Bumps [ansible-community/ansible-lint-action](https://github.com/ansible-community/ansible-lint-action) from 6.16.0 to 6.17.0.
- [Release notes](https://github.com/ansible-community/ansible-lint-action/releases)
- [Commits](https://github.com/ansible-community/ansible-lint-action/compare/v6.16.0...v6.17.0)

---
updated-dependencies:
- dependency-name: ansible-community/ansible-lint-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Related to:
- e4f545c452
- 2481b7dfa4

We've prepared for this by adding the `main` process to the `instance_map` a long time ago,
in 49cb8b7b11.

Upgrade sliding-sync (v0.99.1 -> v0.99.3)

Related to 0f02f0b4da

fix(linkedin): mismatched appservice id

Updated to match value in
`roles/custom/matrix-bridge-beeper-linkedin/templates/config.yaml.j2`.

Add note for -K flag to Ansible

Untested.

Update hookshot 4.3.0 -> 4.4.0

Update ntfy 2.5.0 -> 2.6.0

Update prometheus postgres exporter 0.13.0 -> 0.13.1

Update borgmatic 1.7.14 -> 1.7.15

Update prometheus 2.44.0 -> 2.45.0

Update synapse reverse proxy companion

Update prometheus_postgres_exporter

Update prometheus postgres exporter 0.12.0 -> 0.13.0

Update grafana 9.5.3 -> 10.0.1