[Tests] no-restricted-paths: import type tests

[golergka]

I wanted to work on #2450, but decided to add tests for existing behaviour first, to ensure that subsequent work doesn't break it.

I've copied over all existing tests that had import and changed it to import type.

However, I have one failure currently that I can't figure out how to fix:

  1) Typescript no-restricted-paths invalid import type a from "../client/a"
import type c from "./c.ts":

      AssertionError [ERR_ASSERTION] [ERR_ASSERTION]: Should have 2 errors but had 1: [
  {
    ruleId: 'no-restricted-paths',
    severity: 1,
    message: 'Unexpected path "../client/a" imported in restricted zone.',
    line: 1,
    column: 20,
    nodeType: 'Literal',
    endLine: 1,
    endColumn: 33
  }
]
      + expected - actual

      -1
      +2
      
      at testInvalidTemplate (node_modules/eslint/lib/rule-tester/rule-tester.js:773:24)
      at Context.<anonymous> (node_modules/eslint/lib/rule-tester/rule-tester.js:997:29)
      at processImmediate (node:internal/timers:462:21)

[ljharb]

I've rebased this; i also see only that one failure.

[codecov]

Codecov Report

Base: 95.27% // Head: 95.27% // No change to project coverage 👍

Coverage data is based on head (c3d14cb) compared to base (2e1edd6).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2459   +/-   ##
=======================================
  Coverage   95.27%   95.27%           
=======================================
  Files          68       68           
  Lines        2944     2944           
  Branches      998      998           
=======================================
  Hits         2805     2805           
  Misses        139      139           

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