Robot Upgrade: prometheus-adapter chart upgrade from 4.10.0 to 5.2.0

[weizhoublue]

I am robot, upgrade: project prometheus-adapter chart upgrade from 4.10.0 to 5.2.0

[gemini-code-assist]

Summary of Changes

Hello @weizhoublue, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request performs a significant upgrade of the prometheus-adapter Helm chart to version 5.2.0, bringing the application version to v0.12.0. This essential maintenance step ensures compatibility with modern Kubernetes environments by raising the minimum required Kubernetes version to 1.21+ and removing reliance on deprecated APIs like PodSecurityPolicy and policy/v1beta1 for PodDisruptionBudgets. The update also streamlines chart usage by introducing OCI artifact distribution and provides more granular control over deployment and certificate management through new configuration parameters.

Highlights

• Prometheus Adapter Chart Upgrade: The Helm chart for prometheus-adapter has been upgraded from version 4.10.0 to 5.2.0, which also updates the underlying application version to v0.12.0.
• Kubernetes Version Requirement Increased: The minimum required Kubernetes version for deploying the chart has been raised from 1.14+ to 1.21+.
• Removal of Deprecated APIs: Support for the deprecated policy/v1beta1 API for PodDisruptionBudgets and PodSecurityPolicy resources has been removed, aligning the chart with current Kubernetes standards.
• OCI Artifact Support and Documentation Updates: The README.md files have been updated to reflect the new Kubernetes version prerequisite and to include instructions for installing the chart via OCI Artifacts, alongside traditional Helm repositories.
• Enhanced Configuration Options: New configuration parameters have been introduced for revisionHistoryLimit in deployments and cert-manager certificates, automountServiceAccountToken for service accounts, and unhealthyPodEvictionPolicy for PodDisruptionBudgets, offering more granular control.
• Memory Query Refinement: Prometheus memory queries within the chart's configuration have been updated to utilize the round() function, potentially leading to more precise metric reporting.

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[gemini-code-assist]

Code Review

This pull request automates the upgrade of the prometheus-adapter Helm chart from version 4.10.0 to 5.2.0. The changes are comprehensive, including updates to the chart version, application version, removal of deprecated APIs like PodSecurityPolicy, and the introduction of new features and configuration options. Overall, the upgrade aligns with the upstream changes and is well-executed. I've identified a minor issue with a malformed markdown link in the README files that should be corrected.

[gemini-code-assist]

The markdown link for helm repo appears to be malformed. It's currently [helm repo]([helm repo](https://helm.sh/docs/helm/helm_repo/)), which will not render correctly. It should be corrected to [helm repo](https://helm.sh/docs/helm/helm_repo/).

Suggested change

	The installation instructions use the OCI registry. Refer to the [`helm repo`]([`helm repo`](https://helm.sh/docs/helm/helm_repo/)) command documentation for information on installing charts via the traditional repository.
	The installation instructions use the OCI registry. Refer to the [`helm repo`](https://helm.sh/docs/helm/helm_repo/) command documentation for information on installing charts via the traditional repository.

[gemini-code-assist]

The markdown link for helm repo appears to be malformed. It's currently [helm repo]([helm repo](https://helm.sh/docs/helm/helm_repo/)), which will not render correctly. It should be corrected to [helm repo](https://helm.sh/docs/helm/helm_repo/).

Suggested change

	The installation instructions use the OCI registry. Refer to the [`helm repo`]([`helm repo`](https://helm.sh/docs/helm/helm_repo/)) command documentation for information on installing charts via the traditional repository.
	The installation instructions use the OCI registry. Refer to the [`helm repo`](https://helm.sh/docs/helm/helm_repo/) command documentation for information on installing charts via the traditional repository.