Bump paperless-ngx chart to v0.27.4

Updates the paperless-ngx Helm chart version from 0.27.3 to 0.27.4 and bumps the application version from 2.20.3 to 2.20.4.

This version bump tracks the latest upstream paperless-ngx release, ensuring users have access to the newest features, bug fixes, and security patches available in the 2.20.4 application
release.

charts/paperless-ngx/Chart.yaml

@@ -4,8 +4,8 @@ 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: 0.27.3
-appVersion: 2.20.3
+version: 0.27.4
+appVersion: 2.20.4
 kubeVersion: ">=1.28.0-0"
 keywords:
   - documents