Bump electron to 34.0.1

[mauricioszabo]

This bumps Pulsar to the newest Electron stable version as of today.

Also, as of today, there are some breaking changes (for the absolute surprise of no one) for Electron, and some are still not addressed, for example:

Nan doesn't support Node 23

So I worked-around by making Nan depend on a specific PR, and unfortunately, I also had to force node-addon-api to be a specific version too. Surprisingly, it seems things work out well on my very limited tests.

I'll merge back to my own local version, and test it over the week and update this PR with the results, if things are stable, etc.

[savetheclocktower]

I'd like to hold off on this, if it's OK, for a couple of reasons:

• upgrading this far would make it so that @DeeDeeG can no longer run PulsarNext (they're on an older macOS), so it would really neutralize them as a potential contributor;
• if the nan situation is truly that bleeding-edge, it might be good to wait until all that gets worked out.

I also could've sworn that there were at least one or two of our packages still using (context-aware) nan that hadn't yet been migrated over to N-API.