fix: include reference string in invalid reference format error (#1303)

[ellisvalentiner]

PR for master-annotation-based branch.

See #1304

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 72.05%. Comparing base (0aebc4a) to head (94dbdc1).

Files with missing lines	Patch %	Lines
registry-scanner/pkg/registry/registry.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                     Coverage Diff                     @@
##           master-annotation-based    #1307      +/-   ##
===========================================================
- Coverage                    72.07%   72.05%   -0.02%     
===========================================================
  Files                           45       45              
  Lines                         4186     4187       +1     
===========================================================
  Hits                          3017     3017              
- Misses                        1004     1005       +1     
  Partials                       165      165              

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