🐛(ZENKO-5346) remove duplicated word in ConsumerLagWarning description

[DarkIsDude]

What does this PR do, and why do we need it?

The ConsumerLagWarning alert description in monitoring/kafka/alerts.yaml read "has been more more than ... seconds". This text is rendered as-is in Prometheus/Alertmanager notifications, so the typo is user-visible. This removes the duplicated "more".

Which issue does this PR fix?

Fixes ZENKO-5346.

Special notes for your reviewers:

Text-only change to an alert annotation — no rule expression, threshold, or label touched.

[bert-e]

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[bert-e]

Incorrect fix version

The Fix Version/s in issue ZENKO-5346 contains:

• None

Considering where you are trying to merge, I ignored possible hotfix versions and I expected to find:

• 2.11.14

• 2.12.10

• 2.13.11

• 2.14.7

• 2.15.6

• 2.16.0

Please check the Fix Version/s of ZENKO-5346, or the target
branch of this pull request.

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[francoisferrand]

probably not worth fixing in 2.11, won't ever be released I think : 2.14 or maybe 2.15 is likely enough... or even just fix on latest version, not very important.