chore: enforce correct TypeScript types for dependent-usage.json object

[viktorrusakov]

Description

Fixes a bug with types for dependent-usage.json file, see rationale for the solution in this comment

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (40aea5e) 92.83% compared to head (a670550) 92.83%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2951   +/-   ##
=======================================
  Coverage   92.83%   92.83%           
=======================================
  Files         235      235           
  Lines        4245     4245           
  Branches     1032     1032           
=======================================
  Hits         3941     3941           
  Misses        300      300           
  Partials        4        4           

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[openedx-semantic-release-bot]

🎉 This PR is included in version 21.11.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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[openedx-semantic-release-bot]

🎉 This PR is included in version 22.0.0-alpha.23 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

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