fix(charts): update helm release victoria-metrics-k8s-stack to v0.25.14

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
victoria-metrics-k8s-stack	patch	0.25.12 -> 0.25.14

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Release Notes

VictoriaMetrics/helm-charts (victoria-metrics-k8s-stack)

### [`v0.25.14`](https://redirect.github.com/VictoriaMetrics/helm-charts/releases/tag/victoria-metrics-k8s-stack-0.25.14) [Compare Source](https://redirect.github.com/VictoriaMetrics/helm-charts/compare/victoria-metrics-k8s-stack-0.25.13...victoria-metrics-k8s-stack-0.25.14) ### Release notes for version 0.25.14 **Release date:** 2024-09-04   - fixed alertmanager templates ### [`v0.25.13`](https://redirect.github.com/VictoriaMetrics/helm-charts/releases/tag/victoria-metrics-k8s-stack-0.25.13) [Compare Source](https://redirect.github.com/VictoriaMetrics/helm-charts/compare/victoria-metrics-k8s-stack-0.25.12...victoria-metrics-k8s-stack-0.25.13) ##### Release notes for version 0.25.13 **Release date:** 2024-09-04   - Use operator's own service monitor

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