fix mautrix-whatsapp config

add/unify 'Project source code URL' link across all roles

update buscarron from github -> gitlab

Update mautrix whatsapp 0.5.0 -> 0.6.0

project doesn't exist on github anymore

Update recommended Skype bridge in docs

Improvement over e4caf3fa81.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1921

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1921

signald: 0.18.5 -> 0.20.0

Bump frenck/action-yamllint from 1.1.2 to 1.2.0

Bumps [frenck/action-yamllint](https://github.com/frenck/action-yamllint) from 1.1.2 to 1.2.0.
- [Release notes](https://github.com/frenck/action-yamllint/releases)
- [Commits](https://github.com/frenck/action-yamllint/compare/v1.1.2...v1.2.0)

---
updated-dependencies:
- dependency-name: frenck/action-yamllint
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Unrelated to the original branch I added the matrix-registration bot as it was missing in the readme

Add more database config options and other cleanup

* Creating generic mautrix bridge doc

Not a huge fan of how it turned out at all, not sure how to make it better.

* Rename configuring-playbook-bridge-mautrix-Generic.md to configuring-playbook-bridges.md

* accepting suggested edits after rename mess

* Adding log level configuration

* Update docs/configuring-playbook-bridges.md

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

* Rename configuring-playbook-bridges.md to configuring-playbook-mautrix-bridges.md

Co-authored-by: ThellraAK <ThellraAK@pop-os.localdomain>
Co-authored-by: Slavi Pantaleev <slavi@devture.com>

mjolnir: v1.5.0

https://github.com/matrix-org/mjolnir/releases/tag/v1.5.0

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1912

Co-authored-by: ThellraAK <ThellraAK@pop-os.localdomain>
Co-authored-by: Slavi Pantaleev <slavi@devture.com>