fix for windows build for node-sqlcipher 5.0.0

[dev-manager-uk]

No description provided.

[dev-manager-uk]

not sure what happend with deps/sqlcipher-amalgamation-3031000 - I think you can ignore that if it wants to change.

Main thing is changing:

#if NAPI_VERSION < 6 || TRUE

[rkistner]

Thanks for the work here.

The if statements were introduced upstream here to fix a different issue related to worker threads: TryGhost/node-sqlite3#1367

However, it appears like there are multiple issues related to the N-API 6 version, so it may be better to just disable N-API 6 and worker thread support for now.

[rkistner]

Thanks for the PR. I've now done a thorough investigation, and the issue is caused by electron-rebuild not supporting the {napi_build_version} variable. However, this is important for worker thread support, so I've added notes on another workaround here: #64