fixed regex to work correctly for Windows machines

[danielsutts]

No description provided.

[codecov]

Codecov Report

Merging #484 (bc1b294) into cli3 (e411e29) will decrease coverage by 0.09%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##               cli3     #484      +/-   ##
============================================
- Coverage     56.32%   56.24%   -0.08%     
  Complexity      960      960              
============================================
  Files           153      153              
  Lines          4757     4759       +2     
  Branches        728      730       +2     
============================================
- Hits           2679     2676       -3     
- Misses         1728     1730       +2     
- Partials        350      353       +3     

Impacted Files	Coverage Δ
...owdin/cli/commands/functionality/SourcesUtils.java	85.72% <0.00%> (-3.57%)	⬇️
...in/java/com/crowdin/cli/utils/PlaceholderUtil.java	78.15% <0.00%> (-0.52%)	⬇️
src/main/java/com/crowdin/cli/utils/Utils.java	50.00% <0.00%> (-0.98%)	⬇️

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