chore: update unsafe plugin warning message

[cuixq]

The previous warning message was a bit confusing if there is no relevant manifests that the mentioned plugin will run on.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.29%. Comparing base (800145f) to head (d3ca4ce).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2704      +/-   ##
==========================================
- Coverage   71.60%   71.29%   -0.32%     
==========================================
  Files         164      164              
  Lines       12090    12090              
==========================================
- Hits         8657     8619      -38     
- Misses       2805     2836      +31     
- Partials      628      635       +7     

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[cuixq]

Going to move this warning message to enricher itself so it will only show up when the specific plugin is run.