Update metrics parameter in OpenMetrics's conf.yaml

[kaitlavs]

The example we share for the metrics: parameter is currently configured wrong. There needs to be a space between the original metric name, and the renamed version or the agent will skip collection.

What does this PR do?

Adds a space between the original metric name and the renamed version for the metrics: parameter

Motivation

Two customer escalations

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached

[codecov]

Codecov Report

Merging #9783 (71413d9) into master (d98c2c2) will increase coverage by 0.03%.
The diff coverage is n/a.

❗ Current head 71413d9 differs from pull request most recent head 64f7fd0. Consider uploading reports for the commit 64f7fd0 to get more accurate results
| Flag | Coverage Δ | |
|---|---|---|
| avi_vantage | ? | |
| datadog_checks_dev | 79.93% <ø> (ø) | |
| datadog_cluster_agent | ? | |

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[ofek]

Hi! You'll still need to do this: #9748 (review)

(and rebase)

[ofek]

#9891