feat: mechanism to fingerprint arbitrary data

[RomainMuller]

Provides a facility to efficiently fingerprint the injector
configuration.

[eliottness]

Added 2 commits instead of doing more comments. Feel free to review them or to merge directly

[codecov]

Codecov Report

Attention: Patch coverage is 40.62500% with 114 lines in your changes missing coverage. Please review.

Project coverage is 60.91%. Comparing base (9cae407) to head (bce6597).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/fingerprint/fingerprint.go	42.85%	22 Missing and 10 partials ⚠️
internal/injector/aspect/join/function.go	0.00%	14 Missing ⚠️
internal/injector/aspect/aspect.go	0.00%	8 Missing ⚠️
internal/injector/aspect/advice/code/template.go	46.15%	6 Missing and 1 partial ⚠️
internal/injector/aspect/join/struct.go	0.00%	6 Missing ⚠️
internal/fingerprint/types.go	88.09%	5 Missing ⚠️
internal/injector/aspect/advice/call.go	42.85%	4 Missing ⚠️
internal/injector/aspect/advice/inject.go	33.33%	4 Missing ⚠️
internal/injector/aspect/join/declaration.go	0.00%	4 Missing ⚠️
internal/injector/aspect/join/package.go	0.00%	4 Missing ⚠️
... and 13 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #392      +/-   ##
==========================================
+ Coverage   60.31%   60.91%   +0.60%     
==========================================
  Files         179      181       +2     
  Lines       12593    12702     +109     
==========================================
+ Hits         7595     7737     +142     
+ Misses       4500     4435      -65     
- Partials      498      530      +32     

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% <18.08%> (-0.39%)	⬇️
Injector	71.98% <18.08%> (-0.23%)	⬇️
Job Server	68.13% <ø> (+6.09%)	⬆️
Integration Test Suite	54.24% <ø> (ø)
Other	60.91% <40.62%> (+0.60%)	⬆️

Files with missing lines	Coverage Δ
internal/injector/aspect/advice/assign.go	64.51% <50.00%> (-4.45%)	⬇️
internal/injector/aspect/advice/block.go	65.62% <50.00%> (-4.38%)	⬇️
internal/injector/aspect/advice/import.go	72.22% <0.00%> (-9.03%)	⬇️
internal/injector/aspect/advice/struct.go	54.54% <0.00%> (-2.60%)	⬇️
internal/injector/aspect/advice/wrap.go	71.79% <50.00%> (-3.89%)	⬇️
internal/injector/aspect/context/golang.go	77.14% <0.00%> (-4.68%)	⬇️
internal/injector/aspect/join/all-of.go	66.66% <0.00%> (-3.34%)	⬇️
internal/injector/aspect/join/configuration.go	80.00% <0.00%> (-5.72%)	⬇️
internal/injector/aspect/join/directive.go	86.95% <0.00%> (-3.96%)	⬇️
internal/injector/aspect/join/expression.go	78.94% <0.00%> (-4.39%)	⬇️
... and 13 more

... and 4 files with indirect coverage changes

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