tinybench-plugin doesn't work with `tinybench@4`

[alexander-akait]

Output:

TypeError: Cannot use 'in' operator to search for 'uri' in undefined
      at isCodSpeedBenchOptions (/home/runner/work/webpack/webpack/node_modules/@codspeed/tinybench-plugin/dist/index.cjs.js:67:16)
      at bench.run (/home/runner/work/webpack/webpack/node_modules/@codspeed/tinybench-plugin/dist/index.cjs.js:92:19)
      at file:///home/runner/work/webpack/webpack/test/BenchmarkTestCases.benchmark.mjs:648:13

Ref: https://github.com/webpack/webpack/actions/runs/15047287430/job/42292959584?pr=19533

in tinybench@4 options for a task are stored in fnOpts, but in the plugin code tries to get them from task.opts