Use portable code to find user home directory

[beppler]

This make possible to use the tool on Windows without the need of create the HOME environment variable using portable go code.

Method os.UserHomeDir returns the current user's home directory.

• On Unix, including macOS, it returns the $HOME environment variable.
• On Windows, it returns %USERPROFILE%.
• On Plan 9, it returns the $home environment variable.

[beppler]

I don't know why is this failing, the tests on local works and even the first invocation of the workflow when I pushed the code for the first time worked as shown here: https://github.com/beppler/gobrew/actions/runs/3902607537.

[beppler]

I found that running curl -sLk https://git.io/gobrew from action-gobrew on test pipe is returning HTTP error 503, then gobrwe is not installed. Probably related to: https://github.blog/changelog/2022-04-25-git-io-deprecation/

[kevincobain2000]

Will update to raw GitHub url then

[codecov-commenter]

Codecov Report

Merging #86 (eec6ca4) into master (0768190) will increase coverage by 1.03%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #86      +/-   ##
==========================================
+ Coverage   50.31%   51.34%   +1.03%     
==========================================
  Files           1        1              
  Lines         479      483       +4     
==========================================
+ Hits          241      248       +7     
+ Misses        211      209       -2     
+ Partials       27       26       -1     

Impacted Files	Coverage Δ
gobrew.go	51.34% <100.00%> (+1.03%)	:arrow_up:

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