fix: fix system packages not being found

[wgnf]

📫 Addressed Issue(s)

none

📄 Description

i realized that sometimes System packages are not being considered or found. Added a new cache directory which contains offline packages of an SDK installation which should help.

✅ Checks

• My PR adheres to the general code-style of this project (look at other code if you're unsure)
• [ ] My code requires changes to the documentation
• [ ] I have updated the documentation as required
• All the automated tests have passed

[codecov]

Codecov Report

Merging #121 (c26fefd) into main (61edea0) will decrease coverage by 0.02%.
The diff coverage is 92.85%.

@@            Coverage Diff             @@
##             main     #121      +/-   ##
==========================================
- Coverage   96.98%   96.95%   -0.03%     
==========================================
  Files          54       54              
  Lines        2287     2300      +13     
==========================================
+ Hits         2218     2230      +12     
- Misses         69       70       +1     

Impacted Files	Coverage Δ
...ore/Liz.Core/Utils/ProvideNugetCacheDirectories.cs	97.72% <92.85%> (-2.28%)	⬇️

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