Update paperless-ngx chart version to 0.26.3

This commit updates the version of the paperless-ngx Helm chart
from 0.26.2 to 0.26.3. The version bump reflects upstream changes
and improvements incorporated in the latest release of the chart.
Updating to the new version ensures users benefit from the latest
features and bug fixes associated with paperless-ngx. There are no
breaking changes or major modifications to the chart structure in
this update.

charts/paperless-ngx/Chart.yaml

@@ -4,7 +4,7 @@ description: "A community-supported supercharged version of paperless: scan, ind
 home: https://charts.gabe565.com/charts/paperless-ngx/
 icon: https://raw.githubusercontent.com/paperless-ngx/paperless-ngx/b948750/src-ui/src/assets/logo-notext.svg
 type: application
-version: 0.26.2
+version: 0.26.3
 # renovate datasource=docker depName=ghcr.io/paperless-ngx/paperless-ngx
 appVersion: 2.20.2
 kubeVersion: ">=1.28.0-0"