fix(helm): update chart opentelemetry-operator to 0.64.4

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
opentelemetry-operator (source)	patch	0.64.2 -> 0.64.4

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Release Notes

open-telemetry/opentelemetry-helm-charts (opentelemetry-operator)

### [`v0.64.4`](https://togithub.com/open-telemetry/opentelemetry-helm-charts/releases/tag/opentelemetry-operator-0.64.4) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-helm-charts/compare/opentelemetry-operator-0.64.3...opentelemetry-operator-0.64.4) OpenTelemetry Operator Helm chart for Kubernetes #### What's Changed - \[operator] feat: add 'relabelings' and 'metricRelabelings' configs to serviceMonitor by [@​rl0nergan](https://togithub.com/rl0nergan) in [https://github.com/open-telemetry/opentelemetry-helm-charts/pull/1246](https://togithub.com/open-telemetry/opentelemetry-helm-charts/pull/1246) **Full Changelog**: https://github.com/open-telemetry/opentelemetry-helm-charts/compare/opentelemetry-kube-stack-0.0.10...opentelemetry-operator-0.64.4 ### [`v0.64.3`](https://togithub.com/open-telemetry/opentelemetry-helm-charts/compare/opentelemetry-operator-0.64.2...opentelemetry-operator-0.64.3) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-helm-charts/compare/opentelemetry-operator-0.64.2...opentelemetry-operator-0.64.3)

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