Update Paperless AI Helm chart version and configuration

Updated the Paperless AI Helm chart to version 0.3.0 to reflect
the latest changes and improvements. Modified the deployment.yaml
by adding liveness and readiness probes, which enhance the
resilience and monitoring of the application by checking its
availability and readiness to serve traffic.

Additionally, adjusted the values.yaml file to set the service
account creation to false and commented out the PUID and PGID
environment variables for increased flexibility and to avoid
potential permission issues during deployment. Note that the
securityContext settings for the Pod and Container have also
been changed to disable the pod's user/group settings, which
may affect how the application interacts with resources.

charts/paperless-ai/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: paperless-ai
 description: Ein Helm Chart für Paperless AI, basierend auf der Docker Compose Konfiguration.
-version: 0.2.0
+version: 0.3.0
 appVersion: 3.0.7
 keywords:
   - paperless-ai