fix(eslint-plugin): [no-unnecessary-type-parameters] consider type parameter used as rest parameter type to be used multiple times

[auvred]

PR Checklist

• [x] Addresses an existing open issue: fixes #9890
• [x] That issue was marked as accepting prs
• [x] Steps in Contributing were taken

Overview

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.67%. Comparing base (77e65df) to head (e5c5e73). Report is 375 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #9990   +/-   ##
=======================================
  Coverage   88.67%   88.67%           
=======================================
  Files         425      425           
  Lines       14797    14799    +2     
  Branches     4302     4303    +1     
=======================================
+ Hits        13121    13123    +2     
  Misses       1533     1533           
  Partials      143      143           

Flag	Coverage Δ
unittest	88.67% <100.00%> (+<0.01%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...plugin/src/rules/no-unnecessary-type-parameters.ts	94.36% <100.00%> (+0.08%)	:arrow_up:

[JoshuaKGoldberg]

Switching to draft per discussion in #9890. Sorry @auvred 😅

[kirkwaiblinger]

Gonna close this, since we ended up closing the backing issue #9890