fix(pin): segfault orchestrion.tool.go is not valid go code

[eliottness]

Triggered it on top of #406 because it left the orchestrion.tool.go file empty. And an empty file is not valid go code...

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 60.32%. Comparing base (49288e7) to head (ee071fa).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/pin/pin.go	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #407      +/-   ##
==========================================
- Coverage   60.88%   60.32%   -0.57%     
==========================================
  Files         181      181              
  Lines       12707    12711       +4     
==========================================
- Hits         7737     7668      -69     
- Misses       4439     4535      +96     
+ Partials      531      508      -23     

Components	Coverage Δ
Generators	76.72% <ø> (ø)
Instruments	88.05% <ø> (ø)
Go Driver	73.94% <ø> (ø)
Toolexec Driver	70.66% <ø> (ø)
Aspects	71.50% <ø> (ø)
Injector	71.87% <ø> (ø)
Job Server	62.60% <ø> (-5.53%)	⬇️
Integration Test Suite	54.24% <ø> (ø)
Other	60.32% <75.00%> (-0.57%)	⬇️

Files with missing lines	Coverage Δ
internal/pin/pin.go	49.25% <75.00%> (+1.53%)	⬆️

... and 5 files with indirect coverage changes

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