fix: terramate.config.git block with unrecognized blocks

[i4ki]

Fix the parser not returning errors if the terramate.config.git had unrecognized blocks.

[codecov]

Codecov Report

Merging #359 (26e8018) into main (3f4b4a3) will increase coverage by 0.03%.
The diff coverage is 81.97%.

❗ Current head 26e8018 differs from pull request most recent head 7e8db2d. Consider uploading reports for the commit 7e8db2d to get more accurate results

@@            Coverage Diff             @@
##             main     #359      +/-   ##
==========================================
+ Coverage   68.05%   68.09%   +0.03%     
==========================================
  Files          37       37              
  Lines        6953     6952       -1     
==========================================
+ Hits         4732     4734       +2     
+ Misses       1967     1964       -3     
  Partials      254      254              

Flag	Coverage Δ
tests	68.09% <81.97%> (+0.03%)	⬆️

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

Impacted Files	Coverage Δ
errors/list.go	89.33% <80.00%> (-3.08%)	⬇️
hcl/hcl.go	87.61% <81.40%> (+0.05%)	⬆️
errors/error.go	95.55% <85.18%> (+2.19%)	⬆️

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[katcipis]

Noice 🚀