`maven_artifact` uses httplib2 that attempts anonymous access even if user/password is provided.

So access log looks like:

```
/opt/bitnami/apps/artifactory/artifactory_home/logs/request.log:

20191108102644|3|REQUEST|188.163.xxx.xxx|non_authenticated_user|GET|/libs-snapshot-local/xxx/2.14.0-SNAPSHOT/maven-metadata.xml|HTTP/1.1|401|0
20191108102644|2|REQUEST|188.163.xxx.xxx|reader|GET|/libs-snapshot-local/xxx/2.14.0-SNAPSHOT/maven-metadata.xml|HTTP/1.1|200|792
```

Our repository Artifactory blocks access (per IP??) if too many 401 happens.

Ansible then fails with:

```
failed: [stage-server] (item={'name': 'tp-sc', 'jmx_port': 18004}) => {"ansible_loop_var": "item", "changed": false,
  "msg": "Failed to connect to example.com at port 443: [Errno 110] Connection timed out",
  "status": -1,
  "url": "https://example.com/artifactory/libs-snapshot-local/xxx/2.14.0-SNAPSHOT/server-2.14.0-20191108.084713-5.jar.md5"}
```

There is a patch that fixes the behavior of httplib2 : https://github.com/DorianGeraut/maven_artifact_work/commit/5fff2870ba1e8dee864b21eb3a2ea40c10547484

if artifact.version_by_spec:
            artifact.version = self.find_version_by_spec(artifact)
        if artifact.version == "latest":
            artifact.version = self.find_latest_version_available(artifact)
        if artifact.is_snapshot():
            if self.local:
                return self._uri_for_artifact(artifact, artifact.version)
            path = "/%s/%s" % (artifact.path(), self.metadata_file_name)
            content = self._getContent(self.base + path, "Failed to retrieve the maven metadata file: " + path)
            xml = etree.fromstring(content)
            for snapshotArtifact in xml.xpath("/metadata/versioning/snapshotVersions/snapshotVersion"):
                classifier = snapshotArtifact.xpath("classifier/text()")
                artifact_classifier = classifier[0] if classifier else ''
                extension = snapshotArtifact.xpath("extension/text()")
                artifact_extension = extension[0] if extension else ''
                if artifact_classifier == artifact.classifier and artifact_extension == artifact.extension:
                    return self._uri_for_artifact(artifact, snapshotArtifact.xpath("value/text()")[0])
            timestamp_xmlpath = xml.xpath("/metadata/versioning/snapshot/timestamp/text()")
            if timestamp_xmlpath:
                timestamp = timestamp_xmlpath[0]
                build_number = xml.xpath("/metadata/versioning/snapshot/buildNumber/text()")[0]
                return self._uri_for_artifact(artifact, artifact.version.replace("SNAPSHOT", timestamp + "-" + build_number))
        return self._uri_for_artifact(artifact, artifact.version)
    def _uri_for_artifact(self, artifact, version=None):