feat(colcon-build): enable cpu resource control

[xmfcx]

Description

Follow up from:

• feat(colcon-build): use nice command to not overuse resources #308

Related:

• ci: use aws codebuild autoware.universe#8498

Tests performed

Not applicable.

Effects on system behavior

Not applicable.

Interface changes

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[xmfcx]

Ok it works:

• https://github.com/autowarefoundation/autoware.universe/actions/runs/10456320491/job/28953386662?pr=8498#step:13:365

[xmfcx]

I'm open for variable name changes. Ready for review.