Done with this and similar edits to other Wikivoyages. Seems to work.

Oops, it looks like the API key was only added to enwikivoyage. Let's get it added to all Wikivoyages.

Based on an email that we received yesterday, we thought that maybe we had missed a step in implementing the API key throughout all Wikivoyages. That turned out not to be the case.

I've copied/pasted the email exchange from 24 July 2017 here:

from: Wiki Junkie
I am the user whom initially brought up this issue on the English Wikivoyage Travellers' pub. Unfortunately, so far it seems that the solution you have found was only implemented on the English Wikivoyage dynamic maps ( https://en.wikivoyage.org/w/index.php?title=MediaWiki:Kartographer.js&diff=prev&oldid=3241748 ) .

If possible, please help me fix this issue at the dynamic maps of the Hebrew Wikivoyage as well... this is especially important on the Hebvoy since many of our maps use the Relief Map layer.

I tried importing MediaWiki:Kartographer.js to Hebvoy but so far doing so didn't affect the dynamic maps with the Relief Map layer at all.

You can see an example for this issue in the dynamic map displayed on this article:

https://he.wikivoyage.org/w/index.php?title=%D7%93%D7%90%D7%91%D7%95%D7%A1

And, the response from @MaxSem:

Hey, looks like you're using a volunteer-maintained tool hosted on Toolforge. I can't fix it because I don't have access to it. It has been replaced with Kartographer extension on other Wikivoyages. Switching to Kartographer would give you WMF support. This can be done by modifying your wiki's [[Template:Mapframe]] similar to what was done on other wikis (example: https://en.wikivoyage.org/w/index.php?title=Template:Mapframe&action=edit). I can help your wiki with that if your community is OK with migration. Otherwise, if you would like to stick to your current solution, you need to contact its maintainers (Mey2008 and Andyrom75 I think) to get the API keys issue resolved.

Closing this ticket again.