Fix GTest version in windows CI

[jparisu]

Signed-off-by: jparisu javierparis@eprosima.com

[codecov]

Codecov Report

Merging #248 (91780aa) into main (d1b6cbd) will decrease coverage by 0.18%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #248      +/-   ##
==========================================
- Coverage   59.46%   59.28%   -0.19%     
==========================================
  Files          91       91              
  Lines        3200     3200              
  Branches     1188     1188              
==========================================
- Hits         1903     1897       -6     
- Misses        572      574       +2     
- Partials      725      729       +4     

Impacted Files	Coverage Δ
ddsrouter_core/src/cpp/communication/Track.cpp	62.16% <0.00%> (-6.76%)	⬇️
...ntations/rtps/impl/CommonRTPSRouterParticipant.ipp	56.62% <0.00%> (-1.21%)	⬇️

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[juanlofer-eprosima]

LGTM