[JS] [Benchmarking] JavaScript microbenchmarks are failing

[austin3dickey]

Describe the bug, including details regarding any error messages, version, and platform.

Since this PR:

• GH-31621: [JS] Fix Union null bitmaps #37122

the JavaScript microbenchmarks have been failing on our Ubuntu runner. Here is an example build: https://buildkite.com/apache-arrow/arrow-bci-benchmark-on-ursa-i9-9960x/builds/3550#018a82a7-0b90-4c4b-99fd-c6be4b453e85/6-24091

['yarn', 'perf', '--json']
(node:2507379) ExperimentalWarning: Custom ESM Loaders is an experimental feature. This feature could change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
ReferenceError: exports is not defined in ES module scope
    at file:///var/lib/buildkite-agent/builds/ursa-i9-9960x-2/apache-arrow/arrow-bci-benchmark-on-ursa-i9-9960x/arrow/js/perf/index.ts:18:23
    at ModuleJob.run (node:internal/modules/esm/module_job:198:25)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:409:24)
    at async loadESM (node:internal/process/esm_loader:85:5)
    at async handleMainPromise (node:internal/modules/run_main:61:12)
error Command failed with exit code 1.

Component(s)

Benchmarking, JavaScript

[austin3dickey]

FYI @trxcllnt @domoritz

[austin3dickey]

Thanks @assignUser ! Right now the only machine that runs JS benchmarks is offline but once it comes back on I'm excited to test this.

[austin3dickey]

Confirmed the JS benchmarks are working again. 💜