feat: generate_hcl: remove origin info from header

[katcipis]

Reason for This Change

We want to avoid triggering stacks on change detection when we just move generate blocks to different files.
This is a breaking change.

Description of Changes

Remove the origin information from the header and update the outdated detection test.

[codecov]

Codecov Report

Base: 71.24% // Head: 71.24% // Decreases project coverage by -0.00% ⚠️

Coverage data is based on head (7b0b025) compared to base (a31f9dc).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #710      +/-   ##
==========================================
- Coverage   71.24%   71.24%   -0.01%     
==========================================
  Files          72       72              
  Lines       11529    11525       -4     
==========================================
- Hits         8214     8211       -3     
+ Misses       2982     2981       -1     
  Partials      333      333              

Flag	Coverage Δ
tests	71.24% <100.00%> (-0.01%)	⬇️

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

Impacted Files	Coverage Δ
generate/genhcl/genhcl.go	91.76% <100.00%> (-0.08%)	⬇️
manager.go	59.56% <0.00%> (+0.21%)	⬆️

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[i4ki]

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