feat: deprecate minMetricValue in Huawei Cloudeye scaler

[rickbrouwer]

deprecate minMetricValue in Huawei Cloudeye scaler

Checklist

• When introducing a new scaler, I agree with the scaling governance policy
• I have verified that my change is according to the deprecations & breaking changes policy
• Tests have been added (if applicable)
• Ensure make generate-scalers-schema has been run to update any outdated generated files
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• A PR is opened to update the documentation on (repo) (if applicable)
• Commits are signed with Developer Certificate of Origin (DCO - learn more)

Relates to #7436

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[rickbrouwer]

There is no e2e test for Huawei Cloudeye scaler, so I skip the e2e.