feat: bump OTel image version to 0.136.0

[hisarbalik]

Description

Changes proposed in this pull request (what was done and why):

• Bump OTel version to 0.136.0
• Bump telemetrygen version to 0.136.0
• Cleanup removed *.cpu.utilization metrics [kubeletstats] Cleanup deprecated *.cpu.utilization metrics and respective feature gate open-telemetry/opentelemetry-collector-contrib#42727
• Add benchmark test result for version 0.136.0

Changes refer to particular issues, PRs or documents:

• chore: update opentelemetry opentelemetry-collector-components#401
• chore: update all opentelemetry collector packages #2534

Traceability

• The PR is linked to a GitHub issue.
• The follow-up issues (if any) are linked in the Related Issues section.
• If the change is user-facing, the documentation has been adjusted.
• If a CRD is changed, the corresponding Busola ConfigMap has been adjusted.
• The feature is unit-tested.
• The feature is e2e-tested.