ACAS-762-revert

[brianbolt]

Description

• Removes pinned npm version now that 18.20.1 has been released https://nodejs.org/en/blog/release/v18.20.1

Related Issue

ACAS-762

How Has This Been Tested?

TBD on merge since we don't do mule-arch builds on PRs

[bffrost]

@brianbolt I'm not sure that the version 18.20.1 that I put in that comment is actually the build this fix landed in. Looking through some of the links / history from the ticket, I found this commit in node where the npm version bump landed: nodejs/node@ad86a12

It says it's only in node v22

[bffrost]

Based on my comment above, I don't think we should actually merge this right now unless there's some new information. We could update the comment to be more accurate though