Fix windows CI build

[lukaszstolarczuk]

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This change is 

[codecov]

Codecov Report

Merging #1088 (5a6ac2b) into master (bb3a4ee) will decrease coverage by 0.08%.
The diff coverage is n/a.

❗ Current head 5a6ac2b differs from pull request most recent head 4b724a9. Consider uploading reports for the commit 4b724a9 to get more accurate results

@@            Coverage Diff             @@
##           master    #1088      +/-   ##
==========================================
- Coverage   94.30%   94.22%   -0.09%     
==========================================
  Files          51       51              
  Lines        5061     4971      -90     
==========================================
- Hits         4773     4684      -89     
+ Misses        288      287       -1     

Flag	Coverage Δ
tests_clang_debug_cpp17	93.71% <ø> (-0.13%)	⬇️
tests_gcc_debug	91.74% <ø> (+0.13%)	⬆️

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Impacted Files	Coverage Δ
include/libpmemobj++/detail/ringbuf.hpp	98.38% <ø> (ø)
include/libpmemobj++/detail/atomic_backoff.hpp	38.46% <0.00%> (-3.85%)	⬇️
include/libpmemobj++/transaction.hpp	79.83% <0.00%> (-0.81%)	⬇️
...ude/libpmemobj++/container/concurrent_hash_map.hpp	93.88% <0.00%> (-0.32%)	⬇️
include/libpmemobj++/detail/tagged_ptr.hpp	100.00% <0.00%> (ø)
include/libpmemobj++/experimental/radix_tree.hpp	99.46% <0.00%> (+0.69%)	⬆️

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