Bump prometheus client to improve performance

[iliakur]

What does this PR do?

v0.22.1 seems to have introduced a performance regression. It uses exception-based control flow in a hot loop.
This is supposed to be fixed in v0.23.1.

Motivation

Better CPU usage.

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Add the qa/skip-qa label if the PR doesn't need to be tested during QA.
• If you need to backport this PR to another branch, you can add the backport/<branch-name> label to the PR and it will automatically open a backport PR once this one is merged

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.17%. Comparing base (95c8bcf) to head (04fbc41).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

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