test(node/fs): add test-fs-rm.js

[DonIsaac]

What does this PR do?

Adds parallel/test-fs-rm.js

• Documentation or TypeScript types (it's okay to leave the rest blank in this case)
• Code changes

How did you verify your code works?

This PR only adds a test.

[robobun]

^{Updated 2:49 PM PT - Jan 27th, 2025}

❌ @DonIsaac, your commit 51fc28a has 2 failures in Build #10653:

• test/js/node/test/parallel/test-fs-rm.js - code 1 on 🪟 2019 x64-baseline
• test/js/node/test/parallel/test-fs-rm.js - code 1 on 🪟 2019 x64
• test/cli/install/bun-install-registry.test.ts - 3 failing on 🪟 2019 x64
• test/cli/install/bun-install-registry.test.ts - 1 failing on 🪟 2019 x64-baseline

---

🧪   try this PR locally:

bunx bun-pr 16809

[DonIsaac]

• test(node/fs): add test-fs-rm.js #16809 👈 (View in Graphite)
• fix(node/fs): better validation in fs.Dir #16806
• main

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[RiskyMH]

of course windows has to be no fun
https://buildkite.com/bun/bun/builds/10653

or... is this fixed in above linked #16806

The base branch was changed.