##### SUMMARY
As of 2019-01-15 Maven Central now requires `https`. 

https://support.sonatype.com/hc/en-us/articles/360041287334

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
* maven_repository

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
It's in the build system. Full out not relevant.

ANSIBLE_VERSION=2.8.5
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below
Not relevant
```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. 
Ubuntu 18.04 CIS
-->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

Attempt to get an artifact from Maven Central using `http` instead of `https`

<!--- Paste example playbooks or commands between quotes below -->
```yaml
- name: Download latest agent from maven central
  maven_artifact:
    group_id: com.contrastsecurity
    artifact_id: contrast-agent
    version: "{{ contrast_agent_version }}"
    dest: "{{ contrast_agent_path }}/contrast/contrast.jar"
    owner: tomcat
    group: tomcat 
    mode: 0644
```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->

I expected the artifact to be copied to the AMI as it has done for years before this :-)

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

amazon-ebs: TASK [contrast : Download latest agent from maven central] *********************
    amazon-ebs: fatal: [teamserver-intuit-1579469195]: FAILED! => {"changed": false, "msg": "Failed to download artifact com.contrastsecurity:contrast-agent:3.6.9.11819 because of HTTP Error 501: HTTPS Requiredfor URL http://repo1.maven.org/maven2/com/contrastsecurity/contrast-agent/3.6.9.11819/contrast-agent-3.6.9.11819.jar"}
    amazon-ebs:
 
http://repo1.maven.org/maven2/com/contrastsecurity/contrast-agent/3.6.9.11819/contrast-agent-3.6.9.11819.jar

<!--- Paste verbatim command output between quotes -->
```paste below
Not sure what command you are referring to?
```

verify_checksum = module.params["verify_checksum"]
    verify_download = verify_checksum in ['download', 'always']
    verify_change = verify_checksum in ['change', 'always']
    downloader = MavenDownloader(module, repository_url, local, headers)
    if not version_by_spec and not version:
        version = "latest"
    try:
        artifact = Artifact(group_id, artifact_id, version, version_by_spec, classifier, extension)
    except ValueError as e:
        module.fail_json(msg=e.args[0])
    changed = False
    prev_state = "absent"
    if dest.endswith(os.sep):
        b_dest = to_bytes(dest, errors='surrogate_or_strict')
        if not os.path.exists(b_dest):
            (pre_existing_dir, new_directory_list) = split_pre_existing_dir(dest)
            os.makedirs(b_dest)
            directory_args = module.load_file_common_arguments(module.params)
            directory_mode = module.params["directory_mode"]
            if directory_mode is not None:
                directory_args['mode'] = directory_mode
            else:
                directory_args['mode'] = None
            changed = adjust_recursive_directory_permissions(pre_existing_dir, new_directory_list, module, directory_args, changed)
    if os.path.isdir(b_dest):
        version_part = version
        if version == 'latest':
            version_part = downloader.find_latest_version_available(artifact)
        elif version_by_spec:
            version_part = downloader.find_version_by_spec(artifact)