Ansible get_url module: Unable to find a checksum for file

I'm trying to fetch ActiveMQ Artemis using the following:

- name: Download the ActiveMQ Artemis artifact
  get_url:
    url: "https://www.apache.org/dyn/closer.cgi?filename=activemq/activemq-artemis/{{ artemis_version }}/apache-artemis-{{ artemis_version }}-bin.tar.gz&action=download"
    dest: "/tmp/apache-artemis-{{ artemis_version }}-bin.tar.gz"
    #with fixed checksumm it works but breaks the idea of the version to be a variable.
    #checksum: "sha512:4990a6b742b08bff6a4c7b310d2610565b08a2a02e1a7aec065460d16f8a6fe3d4fe91a8040839f93d7c2eab09fd6a79848fb130f9820559ee3e81dcf8d51ead"
    #Getting "Unable to find a checksum for file 'closer.cgi' in 'https://downloads.apache.org/activemq/activemq-artemis/2.16.0/apache-artemis-2.16.0-bin.tar.gz.sha512'"
    checksum: "sha512:https://downloads.apache.org/activemq/activemq-artemis/{{ artemis_version }}/apache-artemis-{{ artemis_version }}-bin.tar.gz.sha512"
    #Also getting: fatal: [dev-broker-01]: FAILED! => {"changed": false, "dest": "/tmp/apache-artemis-2.16.0-bin.tar.gz", "elapsed": 0, "msg": "Request failed: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:618)>", "url": "https://www.apache.org/dyn/closer.cgi?filename=activemq/activemq-artemis/2.16.0/apache-artemis-2.16.0-bin.tar.gz&action=download"}
    validate_certs: no

and getting:

Unable to find a checksum for file 'closer.cgi' in 'https://downloads.apache.org/activemq/activemq-artemis/2.16.0/apache-artemis-2.16.0-bin.tar.gz.sha512'"
It's not picking up the filename from dest: "/tmp/apache-artemis-{{ artemis_version }}-bin.tar.gz"

Also having some issue validating the certificate.

Any ideas how can I solve both problems?

The error seems to suggest that it is looking for checksum of file closer.cgi rather than the actual tar.gz file. And the filename in the checksum URL is: apache-artemis-2.16.0-bin.tar.gz.

The other way to specify the checksum, is to just supply the checksum string (without filename). Although for that we need to come up with a couple of tasks prior to get it.

Something like below:

- uri:
    url: "https://downloads.apache.org/activemq/activemq-artemis/{{ artemis_version }}/apache-artemis-{{ artemis_version }}-bin.tar.gz.sha512"
    return_content: true
  register: url_sha512
- set_fact:
    artemis_checksum: "{{ url_sha512.content.split('  ')[0] }}"      # there are 2 spaces
- get_url:
    url: "https://www.apache.org/dyn/closer.cgi?filename=activemq/activemq-artemis/{{ artemis_version }}/apache-artemis-{{ artemis_version }}-bin.tar.gz&action=download"
    dest: "/tmp/apache-artemis-{{ artemis_version }}-bin.tar.gz"
    checksum: "sha512:{{ artemis_checksum }}"
    # I was able to download without having below parameter
    # validate_certs: no

Update:

This kind of approach can be useful when site directory cannot be browsed, and file must be obtained from a mirrored URL.