Dnsrobocert

Added
* Inject environment variables `DNSROBOCERT_CERTIFICATE_NAME`, `DNSROBOCERT_CERTIFICATE_PROFILE`
and `DNSROBOCERT_CERTIFICATE_DOMAINS` in hook scripts
* Setup CI/CD with GitHub Actions

Modified
* Upgrade to Lexicon 3.9.4
* Upgrade to Certbot 1.23.0
* Fix error in Docker entrypoint timezone setting when `TIMEZONE` is defined

Removed
* Remove Azure Pipelines

Modified
* Fix Docker builds by downgrading Python 3.10 to Python 3.9

Added
* Add support for Python 3.10

Modified
* Link dynamically to Lexicon documentation for providers options
* Update Lexicon to 3.9.2 (fix `transip` provider)

Removed
* Drop support for Python 3.6

Modified
* Update Certbot to 1.22.0
* Update Lexicon to 3.8.5 (add ValueDomain provider)
* Fix some deprecated warnings and documentation

Added
* Support ECDSA keys when creating new certificates with the `key_type` string parameter
in the certificate section: set to `rsa` to use RSA keys (default if not set) or `ecdsa`
to use ECDSA keys. Example:
yaml
profiles:
- name: dummy
...
certificates:
- domains: [example.org]
profile: dummy
key_type: ecdsa

Added
* Makes DNSroboCert capable to restart Podman containers with the `autorestart` feature (551)

Modified
* Update Certbot to 1.21.0
* Update Lexicon to 3.8.3