Use codeclysm/extract and remove custom implementation

[umbynos]

Please check if the PR fulfills these requirements

• The PR has no duplicates (please search among the Pull Requests
  before creating one)
• Tests for the changes have been added (for bug fixes / features)

• What kind of change does this PR introduce?

enhancement/security

• What is the current behavior?

We use codeclysm/extract in our arduino GOLang projects. This is the only one that is using a custom implementation for extracting files.

• What is the new behavior?

Use codeclysm/extract which already include security fixes (codeclysm/extract#14)

• Does this PR introduce a breaking change?

Nop

• Other information:

[codecov-commenter]

Codecov Report

Attention: 15 lines in your changes are missing coverage. Please review.

Comparison is base (9d362b2) 19.68% compared to head (37e9e8e) 20.59%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
tools/download.go	62.50%	10 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #867      +/-   ##
==========================================
+ Coverage   19.68%   20.59%   +0.90%     
==========================================
  Files          46       46              
  Lines        3672     3467     -205     
==========================================
- Hits          723      714       -9     
+ Misses       2855     2653     -202     
- Partials       94      100       +6     

Flag	Coverage Δ
unit	20.59% <62.50%> (+0.90%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[rhpco]

LGTM

[alessio-perugini]

great work!