Gem's package includes examples directory

[lnit]

Steps to reproduce

I'm having trouble with vulnerability alerts from Amazon Inspector.
exception_notification-4.4.3/examples/sinatra/Gemfile.lock is alerted.

This gem's package includes examples/sinatra
But I think that is not library files.

Expected behavior

This gem's package doesn't include examples/sinatra

Actual behavior

This gem's package includes examples/sinatra
But I think that is not library files.

$ ls -1 $(gem environment gemdir)/gems/exception_notification-4.5.0
Appraisals
CHANGELOG.rdoc
CODE_OF_CONDUCT.md
CONTRIBUTING.md
Gemfile
MIT-LICENSE
README.md
Rakefile
docs
examples
exception_notification.gemspec
gemfiles
lib
test

System configuration

Rails version:
6.1.4.4
Ruby version:
2.7.5
Other configurations: