chore(apps/vault): update helm release vault to v0.28.1

This MR contains the following updates:

Package	Update	Change
vault (source)	minor	0.27.0 -> 0.28.1

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Release Notes

hashicorp/vault-helm (vault)

v0.28.1

Compare Source

Changes:

• Default vault version updated to 1.17.2
• Default vault-k8s version updated to 1.4.2
• Default vault-csi-provider version updated to 1.4.3
• Tested with Kubernetes versions 1.26-1.30

Improvements:

• Configurable tlsConfig and authorization for Prometheus ServiceMonitor GH-1025
• Remove UPDATE from injector-mutating-webhook GH-783
• Add scope to mutating webhook GH-1037

v0.28.0

Compare Source

Changes:

• Default vault version updated to 1.16.1
• Default vault-k8s version updated to 1.4.1
• Default vault-csi-provider version updated to 1.4.2
• Tested with Kubernetes versions 1.25-1.29

Features:

• server: Add annotation on config change GH-1001

Bugs:

• injector: add missing get nodes permission to ClusterRole GH-1005

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