get rid of old WA for vcpkg and use latest release instead

[lukaszstolarczuk]

ref. #785 - it's also required on stable-1.9 and -1.10

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This change is 

[codecov]

Codecov Report

Merging #787 into stable-1.9 will decrease coverage by 14.31%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           stable-1.9     #787       +/-   ##
===============================================
- Coverage       95.94%   81.62%   -14.32%     
===============================================
  Files              40       40               
  Lines            4145     3794      -351     
===============================================
- Hits             3977     3097      -880     
- Misses            168      697      +529     

Flag	Coverage Δ
#tests_clang_debug_cpp17	71.70% <ø> (-24.18%)	⬇️
#tests_gcc_debug	79.36% <ø> (-13.93%)	⬇️

Impacted Files	Coverage Δ
include/libpmemobj++/detail/conversions.hpp	0.00% <0.00%> (-100.00%)	⬇️
include/libpmemobj++/timed_mutex.hpp	0.00% <0.00%> (-87.10%)	⬇️
include/libpmemobj++/condition_variable.hpp	0.00% <0.00%> (-78.27%)	⬇️
include/libpmemobj++/detail/pair.hpp	37.50% <0.00%> (-62.50%)	⬇️
include/libpmemobj++/pexceptions.hpp	5.55% <0.00%> (-48.69%)	⬇️
include/libpmemobj++/detail/life.hpp	60.00% <0.00%> (-38.34%)	⬇️
include/libpmemobj++/defrag.hpp	54.54% <0.00%> (-37.77%)	⬇️
include/libpmemobj++/mutex.hpp	54.54% <0.00%> (-32.42%)	⬇️
include/libpmemobj++/transaction.hpp	61.53% <0.00%> (-25.60%)	⬇️
include/libpmemobj++/persistent_ptr_base.hpp	76.00% <0.00%> (-24.00%)	⬇️
... and 22 more

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Reviewable status: 0 of 1 files reviewed, all discussions resolved