Update certbot to v3 (major) (#42)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [certbot](https://github.com/certbot/certbot) | major | `==2.11.0` -> `==3.1.0` |
| [certbot-dns-cloudflare](https://github.com/certbot/certbot) | major | `==2.11.0` -> `==3.1.0` |

---

### Release Notes

<details>
<summary>certbot/certbot (certbot)</summary>

### [`v3.1.0`](https://github.com/certbot/certbot/releases/tag/v3.1.0): Certbot 3.1.0

[Compare Source](https://github.com/certbot/certbot/compare/v3.0.1...v3.1.0)

##### Added

-

##### Changed

-   Python 3.8 support was removed.
-   certbot-dns-rfc2136's minimum required version of dnspython is now 2.6.1.
-   Updated our Docker images to be based on Alpine Linux 3.20.
-   Our runtime dependency on setuptools has been dropped from all Certbot
    components.
-   Certbot's packages no longer depend on library importlib_resources.

##### Fixed

-   Included an OpenSSL library that was missing in our Certbot snap fixing
    crashes affecting 32-bit ARM users.

More details about these changes can be found on our GitHub repo.

### [`v3.0.1`](https://github.com/certbot/certbot/releases/tag/v3.0.1): Certbot 3.0.1

[Compare Source](https://github.com/certbot/certbot/compare/v3.0.0...v3.0.1)

##### Fixed

-   Removed a CryptographyDeprecationWarning that was being displayed to users
    when checking OCSP status.

More details about these changes can be found on our GitHub repo.

### [`v3.0.0`](https://github.com/certbot/certbot/releases/tag/v3.0.0): Certbot 3.0.0

[Compare Source](https://github.com/certbot/certbot/compare/v2.11.0...v3.0.0)

##### Added

-

##### Changed

-   The update_symlinks command was removed.
-   The `csr_dir` and `key_dir` attributes on
    `certbot.configuration.NamespaceConfig` were removed.
-   The `--manual-public-ip-logging-ok` command line flag was removed.
-   The `--dns-route53-propagation-seconds` command line flag was removed.
-   The `certbot_dns_route53.authenticator` module has been removed. This should
    not affect any users of the plugin and instead would only affect developers
    trying to develop on top of the old code.
-   Support for Python 3.8 was deprecated and will be removed in our next planned
    release.

##### Fixed

-

More details about these changes can be found on our GitHub repo.

</details>

---

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---

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---

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Reviewed-on: #42
Co-authored-by: Renovate Bot <renovate@mrmeeb.stream>
Co-committed-by: Renovate Bot <renovate@mrmeeb.stream>

requirements.txt

@@ -1,5 +1,5 @@
 # For pinning Python packages to then be parsed by Renovate
 
-certbot ==2.11.0
-certbot-dns-cloudflare ==2.11.0
+certbot ==3.1.0
+certbot-dns-cloudflare ==3.1.0
 apprise ==1.9.1