Updating rule for e2e:perf-on-cng test to check for group::code review label before running

What does this MR do and why?

This MR adds a check for groupcode review and maintenancedependency label while running the e2e:perf-on-cng job.

It'll only run for backend changes/backend+frontend changes when the groupcode review or maintenancedependency label is applied to the MR.

The reason being the dependency update can have a performance impact and also impact the baseline results if merged without knowing the impact.

Will skip running the e2e:perf-on-cng job for all other cases.

References

Related to gitlab-org/quality/component-performance-testing#111

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