feat: add --ownership option

[JoshuaKGoldberg]

PR Checklist

• Addresses an existing open issue: fixes 🚀 Feature: Allow filtering on ownership #8
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

Adds author, maintainer, and publisher options with a default of ["author", "publisher"].

[codecov]

Codecov Report

Merging #9 (7c48369) into main (11d800b) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main        #9   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            4         6    +2     
  Lines           26        34    +8     
  Branches         4         8    +4     
=========================================
+ Hits            26        34    +8     

Impacted Files	Coverage Δ
src/assertValidOwnership.ts	100.00% <100.00%> (ø)
src/createUserPackagesFilter.ts	100.00% <100.00%> (ø)
src/packageOwnershipForms.ts	100.00% <100.00%> (ø)
src/tideliftMeUpCli.ts	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes

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[JoshuaKGoldberg]

@all-contributors please add @JoshuaKGoldberg for code.

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[allcontributors]

@JoshuaKGoldberg

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