ACAS-762 pin npm to get fix for too many connections issue

[bffrost]

Description

The issue with our builds (ACAS-762) appears to be caused by this npm issue npm/cli#7072 . That issue has been fixed in a new release of npm, but Node hasn't yet made a release. To get our builds unstuck I'd like to pin npm.

Related Issue

ACAS-762

How Has This Been Tested?

• Ran an arm build on my mac and confirmed the ACAS image is able to run and successfully starts up node
• Tried running a multi-arch build on my mac docker buildx build --platform=linux/arm64,linux/amd64 . but this got stuck and eventually I cancelled it (after ~8 hours) with this error:

=> [linux/amd64 11/19] RUN     npm install -g gulp@4.0.2 forever@3.0.4 coffeescript@2.5.1                       329.3s
 => => # npm WARN deprecated chokidar@2.1.8: Chokidar 2 does not receive security updates since 2019. Upgrade to chokid
 => => # ar 3 with 15x fewer dependencies                                                                              
 => => # npm WARN deprecated source-map-resolve@0.5.3: See https://github.com/lydell/source-map-resolve#deprecated     
 => => # npm WARN deprecated chokidar@2.1.8: Chokidar 2 does not receive security updates since 2019. Upgrade to chokid
 => => # ar 3 with 15x fewer dependencies                                                                              
 => => # qemu: uncaught target signal 11 (Segmentation fault) - core dumped

The real test will be running in our CI environment on GH actions.

[brianbolt]

LGTM

[brianbolt]

Going to go ahead with the merge.

[brianbolt]

Took a VERY long time but it did complete: https://github.com/mcneilco/acas/actions/runs/8625778116/job/23642909138