Fix project indexing, which was preventing use of Find File (Ctrl+P).

This appears to be the result of Atom's git-utils package vendoring libgit2 during 5.6.0 and 5.6.1 at an incorrect point in libgit2's history, where there was an ABI change where gitno_connection_data was renamed to get_net_url. This landed on June 11th, per this pull request but doesn't account for subsequent commits to src/net.c, realistically they should sort out their submodule or not rely on it in the first place. This new git-utils package was pulled in specifically for 1.41.0 and thus reverting it 5.5.0 from 1.40.0 resolves the issue.

Alongside this change I also went ahead and removed some long unnecessary node engine min / max version comparisons.