Add npm versions

[Maxim-Mazurok]

Which problem is this pull request solving?

Adds npm versions

List other issues or pull requests related to this problem

Closes #8

Describe the solution you've chosen

Added new "nodeNpmVersion" property to return object

Describe alternatives you've considered

Returning an array of npm versions and user would have to get index of node version, then check npm array for the same index, seems not very user friendly

Checklist

Please add a x inside each checkbox:

• I have read the contribution guidelines.
• I have added tests (we are enforcing 100% test coverage).
• I have added documentation in the README.md, the docs directory (if
  any) and the examples directory (if any).
• The status checks are successful (continuous integration). Those can be
  seen below.

[codecov]

Codecov Report

Merging #9 (22b88aa) into main (ad48123) will not change coverage.
The diff coverage is 100.00%.

Impacted Files	Coverage Δ
src/normalize.js	100.00% <100.00%> (ø)

Flag	Coverage Δ
linux	100.00% <100.00%> (ø)
mac	100.00% <100.00%> (ø)
node_v14_18_0	100.00% <100.00%> (ø)
node_v18_4_0	100.00% <100.00%> (ø)
windows	100.00% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

[ehmicky]

Thanks a lot for this PR @Maxim-Mazurok! 🎉
I added two suggestions, please let me know what you think.

[ehmicky]

Thanks a lot @Maxim-Mazurok, great contribution! 🎉

[ehmicky]

Released in 11.0.0.

[Maxim-Mazurok]

Thank you for your prompt responses, it was a pleasure :)