Check if zos-base.h is in the directory identified by environment
variable ZOSLIB_INCLUDES if set; otherwise search for it from a set of
candidates under nodeRootDir. Then pass it as
-Dzoslib_include_dir=<path-found> to gyp_main.py for use in common.gypi
to set 'includes_dir' when compiling addons.

Co-authored-by: Gaby Baghdadi <baghdadi@ca.ibm.com>

Co-authored-by: Gaby Baghdadi <baghdadi@ca.ibm.com>

No functional changes, just dropping old node versions from engines,
linting, and fixing CI.

…hrow (#2719)

* fix: node.js debugger adds stderr (but exit code is 0) -> shouldn't throw

* input.py: subprocess.Popen() -> subprocess.run()

Python 3.9 on IBM i now properly returns "os400" for sys.platform
instead of claiming to be AIX as it did previously. While the IBM i PASE
environment is compatible with AIX, it is a subset and has numerous
differences which makes it beneficial to distinguish, however this means
that it now needs explicit support here.

Co-authored-by: TrellixVulnTeam <kasimir.schulz@trellix.com>

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

https://docs.python.org/3/whatsnew/3.11.html

* ci: drop python 3.6 from test matrix

* Update .github/workflows/tests.yml

Co-authored-by: Christian Clauss <cclauss@me.com>

Co-authored-by: Christian Clauss <cclauss@me.com>