[ BUG ] Unhandled tag for "content_loc" in video sitemap

[saurabhd]

Describe the bug
I tried to use sitemap@6.3.6 version and used a sample XML file which has video tag with appropriate namespaces attached in the XML. The script correctly parses the XML and produces the video entities information in JSON format except content_loc. As per my findings, the tag is not handled here and here. When I put the same in the compiled JS version, it starts getting the content_loc in JSON format correctly.

Expected behavior
It should detect content_loc along with other video tag fields.

Context:
Sitemap 6.3.6 version used.

Additional context
Let me know if anymore information needed in order to reproduce this, thanks.

[saurabhd]

@ekalinin @derduher - for your kind consideration, please. Thanks

[derduher]

Looks like I missed implementing this feature. Thanks for finding this.
fixed in #350 6.4.0