Increase CPU & memory request/limit for various Review App components

What does this MR do?

This increase the CPU request/limit for the following components:

• gitlab-runner: 450m/675m => 675m/1015m
• minio: 5m/10m => 9m/15m

This increase the memory request/limit for the following components:

• sidekiq: 880M/1320M => 970M/1450M
• unicorn: 1540M/2310M => 1630M/2450M

Does this MR meet the acceptance criteria?

Conformity

• Code review guidelines
• Merge request performance guidelines
• Style guides

Closes #36945 (closed).