Add support for basic parallelization of the 'static-analysis' job

What does this MR do?

Add basic support for parallelizing the static-analysis job:

• The first node runs bin/rake lint:all
• The second node runs the rest
• Only supports parallelization of 1 or 2

Examples:

• static-analysis 1/2: https://gitlab.com/gitlab-org/gitlab/-/jobs/337677897
• static-analysis 2/2: https://gitlab.com/gitlab-org/gitlab/-/jobs/337726153

Does this MR meet the acceptance criteria?

Conformity

• Code review guidelines
• Merge request performance guidelines
• Style guides
• Separation of EE specific content

Closes #34318 (closed).