Bump web_video_server to 3.1.0-1 from 3.0.0-1

[jaagut]

This bumps web_video_server to 3.1.0-1 from 3.0.0-1.

Closes #210. Hopefully.

[traversaro]

I replied in #210, but as a more specific comment to this PR: unfortunately the web_video_server ships a shared library, and in particular from release 3.0.0 to 3.1.0 some ABI breaking change were done (see RobotWebTools/web_video_server@3.0.0...3.1.0), so we can't bump its version without also bumping the mutex, as the mutex is the only thing preventing ABI breakage in robostack (as opposed to conda-forge where we have run_exports and all that machinery).

On the bright side, the exact same version bump for web_video_server is done in #212, so as soon as #212 is merged, there will be a new full rebuilt that includes web-video-server 3.1.0 .

[jaagut]

@traversaro Thank you for your detailed reply. I think it's fine for us to wait for #212. We are currently a bit confused why we are still or again getting errors importing sqlite3.

Our observation was: This issue has been resolved, until we added web_video_server. But now removing it, still doesn't resolve the issue.