feat: Add CycloneDX 1.6 in report format

[AlexLaroche]

This PR adds support for CycloneDX 1.6 report format.

[another-rex]

Thanks, looks great!

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 75.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 65.41%. Comparing base (24e8319) to head (7ac5020).

Files with missing lines	Patch %	Lines
internal/reporter/format.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1988   +/-   ##
=======================================
  Coverage   65.40%   65.41%           
=======================================
  Files         174      175    +1     
  Lines       17130    17138    +8     
=======================================
+ Hits        11204    11210    +6     
- Misses       5162     5164    +2     
  Partials      764      764           

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