fix: Fix destinations for files containing matchers when globbing is disabled.

[rtpt-erikgeiser]

This PR fixes a bug where file sources containing matchers result in the files being created inside folders of the same name as the file when globbing is disabled.

Example:

src: foo/{bar}/config.json
dst: /etc/config.json

resulted in this:

src: foo/{bar}/config.json
dst: /etc/config.json/config.json

when it should have actually just remain unchanged.

[codecov]

Codecov Report

Merging #410 (29c4c11) into main (9570f52) will increase coverage by 0.05%.
The diff coverage is 90.90%.

@@            Coverage Diff             @@
##             main     #410      +/-   ##
==========================================
+ Coverage   66.19%   66.25%   +0.05%     
==========================================
  Files          15       15              
  Lines        1855     1855              
==========================================
+ Hits         1228     1229       +1     
  Misses        488      488              
+ Partials      139      138       -1     

Impacted Files	Coverage Δ
internal/glob/glob.go	83.60% <90.00%> (+2.90%)	⬆️
files/files.go	91.05% <100.00%> (-0.29%)	⬇️

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[rtpt-erikgeiser]

I have no idea why, but the Windows CI task fails due to missing gcc. I don't think that's related to this RP.

[djgilcrease]

Lgtm

[caarlos0]

nice, thanks!