Add support for Node 17 and 18. Drop support for Node 10, 12 and 15.

[nolanmar511]

Node 17 will be released on 6/1. Support for Node 15 will end on that day.

We should add tests and pre-built binarys for Node 17, and remove tests and prebuilt binaries for Node 15 then.

[amchiclet]

Revisiting this issue now. Updating the title so it matches the current releases of node.

The plan is to update the tests for node 17 and 18 and drop tests for node 10 and 15.

Would also like to note that since we use source-map, the tests for node 18 will fail until the upstream issue is officially fixed.

A workaround is to use the 0.8.0-beta.0 version of source-map.

[nolanmar511]

node-pre-gyp does not currently have maintainers (mapbox/node-pre-gyp#657) and does not support building node 18 binaries on a machine using another version of node (mapbox/node-pre-gyp#647).

Given this, the approach for generating pre-built binaries will need to change to build binaries for Node 18.

[nolanmar511]

Might be possible to switch to using Node.js's inspector & drop the native portion of this library once LTS for Node 12 has ended.

[aabmass]

Should also update the docs here https://cloud.google.com/profiler/docs/profiling-nodejs