Go binary not found should not be an error

[another-rex]

as it's very likely to be found in a lot of circumstances (e.g. running in CI).

See #620 for more context.

[codecov-commenter]

Codecov Report

Merging #622 (60a364d) into main (8340d5a) will decrease coverage by 0.36%.
Report is 4 commits behind head on main.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #622      +/-   ##
==========================================
- Coverage   80.64%   80.29%   -0.36%     
==========================================
  Files          78       78              
  Lines        5342     5379      +37     
==========================================
+ Hits         4308     4319      +11     
- Misses        866      885      +19     
- Partials      168      175       +7     

Files	Coverage Δ
pkg/osvscanner/optional_enricher.go	8.69% <0.00%> (ø)

... and 2 files with indirect coverage changes