Use VS 2016 as a temp workaround

[igchor]

for: actions/runner-images#3475

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This change is 

[lukaszstolarczuk]

Reviewed 1 of 1 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @igchor)

[codecov]

Codecov Report

Merging #1079 (424eda1) into master (7b9e9f0) will not change coverage.
The diff coverage is n/a.

❗ Current head 424eda1 differs from pull request most recent head 6266815. Consider uploading reports for the commit 6266815 to get more accurate results

@@           Coverage Diff           @@
##           master    #1079   +/-   ##
=======================================
  Coverage   94.03%   94.03%           
=======================================
  Files          49       49           
  Lines        4726     4726           
=======================================
  Hits         4444     4444           
  Misses        282      282           

Flag	Coverage Δ
tests_clang_debug_cpp17	93.49% <ø> (+0.08%)	⬆️
tests_gcc_debug	91.49% <ø> (-0.26%)	⬇️

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Impacted Files	Coverage Δ
include/libpmemobj++/condition_variable.hpp	73.80% <0.00%> (-2.39%)	⬇️
...ude/libpmemobj++/container/concurrent_hash_map.hpp	94.35% <0.00%> (+0.15%)	⬆️

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