fix(model): check attributes specified for included through model

[aristov]

Pull Request check-list

Please make sure to review and check all of these items:

• Does npm run test or npm run test-DIALECT pass with this change (including linting)?
• Does the description below contain a link to an existing issue (Closes #[issue]) or a description of the issue you are solving?
• Have you added new tests to prevent regressions?
• Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?
• Did you update the typescript typings accordingly (if applicable)?
• Did you follow the commit message conventions explained in CONTRIBUTING.md?

Description of change

Project.belongsToMany(User, { through : 'UserProject' })
User.belongsToMany(Project, { through : 'UserProject' })

User.findAll({
  include : [
    {
      model : Project,
      through : {
        attributes : [] // the option is fixed by this change
      }
    }
  ]
})

This PR is a port of the #12020 to master branch.

[codecov]

Codecov Report

Merging #12316 into master will increase coverage by 3.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master   #12316      +/-   ##
==========================================
+ Coverage   93.37%   96.40%   +3.02%     
==========================================
  Files          91       95       +4     
  Lines        8753     9115     +362     
==========================================
+ Hits         8173     8787     +614     
+ Misses        580      328     -252     

Impacted Files	Coverage Δ
lib/model.js	96.62% <100.00%> (+<0.01%)	⬆️
lib/dialects/sqlite/index.js	100.00% <0.00%> (ø)
lib/dialects/sqlite/query.js	98.18% <0.00%> (ø)
lib/dialects/sqlite/query-interface.js	98.55% <0.00%> (ø)
lib/dialects/sqlite/connection-manager.js	100.00% <0.00%> (ø)
lib/dialects/abstract/query-interface.js	93.76% <0.00%> (+0.31%)	⬆️
lib/data-types.js	91.37% <0.00%> (+0.34%)	⬆️
lib/dialects/abstract/query-generator.js	97.39% <0.00%> (+0.50%)	⬆️
lib/dialects/abstract/query.js	91.98% <0.00%> (+0.96%)	⬆️
lib/sequelize.js	95.81% <0.00%> (+1.28%)	⬆️
... and 4 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 6d87cc5...f0aeaf7. Read the comment docs.

[papb]

Thank you very much!! 🚀

[Leithal3]

Hey @papb, just wondering when you guys are planning the next release to v6? This is something I would like to use.

I realise there was a release around a week ago so no pressure 😄