Prefer sysconfig over distutils

[gaborbernat]

distutils will be removed in python3.10, and is now deprecated.

[codecov]

Codecov Report

Merging #1951 into main will decrease coverage by 8.42%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##             main    #1951      +/-   ##
==========================================
- Coverage   93.92%   85.49%   -8.43%     
==========================================
  Files          86       86              
  Lines        4228     4255      +27     
==========================================
- Hits         3971     3638     -333     
- Misses        257      617     +360     

Flag	Coverage Δ
#tests	85.49% <80.00%> (-8.43%)	⬇️

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

Impacted Files	Coverage Δ
src/virtualenv/discovery/py_info.py	92.35% <60.00%> (-2.40%)	⬇️
src/virtualenv/create/describe.py	100.00% <100.00%> (ø)
.../create/via_global_ref/builtin/cpython/cpython2.py	86.56% <100.00%> (-10.45%)	⬇️
...ualenv/create/via_global_ref/builtin/pypy/pypy2.py	92.20% <100.00%> (-6.50%)	⬇️
src/virtualenv/discovery/windows/pep514.py	0.00% <0.00%> (-100.00%)	⬇️
src/virtualenv/discovery/windows/__init__.py	0.00% <0.00%> (-100.00%)	⬇️
src/virtualenv/util/subprocess/_win_subprocess.py	0.00% <0.00%> (-95.09%)	⬇️
src/virtualenv/util/path/_pathlib/via_os_path.py	0.00% <0.00%> (-91.51%)	⬇️
src/virtualenv/create/via_global_ref/store.py	50.00% <0.00%> (-40.00%)	⬇️
src/virtualenv/activation/batch/__init__.py	66.66% <0.00%> (-33.34%)	⬇️
... and 16 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4bcf20e...caab966. Read the comment docs.