refactor(core): Lazy-load `form-data` and `ssh2` (no-changelog)

[netroy]

Summary

Loading these two packages startup increases the baseline memory usage by a bit, but it also slows the backend tests down, since these packages are loaded for every test, even if they are not used.

Related Linear tickets, Github issues, and Community forum posts

Review / Merge checklist

• [ ] PR title and summary are descriptive. (conventions)
• [ ] Docs updated or follow-up ticket created.
• [ ] Tests included.
• [ ] PR Labeled with release/backport (if the PR is an urgent fix that needs to be backported)

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.	Files with missing lines	Patch %	Lines
packages/workflow/src/utils.ts	0.00%	1 Missing :warning:

:loudspeaker: Thoughts on this report? Let us know!

[netroy]

this does not speed up the CI