feat: EPSS support

[djschleen]

This PR adds EPSS support into bomber

More Information on EPSS

[codecov]

Codecov Report

Base: 84.31% // Head: 86.14% // Increases project coverage by +1.82% 🎉

Coverage data is based on head (e478aee) compared to base (ed7b8f0).
Patch coverage: 73.13% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #89      +/-   ##
==========================================
+ Coverage   84.31%   86.14%   +1.82%     
==========================================
  Files          16       17       +1     
  Lines         676      736      +60     
==========================================
+ Hits          570      634      +64     
+ Misses         77       69       -8     
- Partials       29       33       +4     

Impacted Files	Coverage Δ
formats/spdx/spdx.go	100.00% <ø> (+5.55%)	⬆️
formats/syft/syft.go	100.00% <ø> (+5.55%)	⬆️
renderers/html/html.go	82.45% <48.00%> (+0.02%)	⬆️
renderers/stdout/stdout.go	80.00% <86.66%> (+2.66%)	⬆️
lib/enrichment/epss.go	86.95% <86.95%> (ø)
formats/cyclonedx/cyclonedx.go	100.00% <100.00%> (+16.27%)	⬆️
... and 1 more

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