Bump Helm chart to v0.2.3

Author: Scott Davidson

deployment/helm/charts/danswer/Chart.yaml

@@ -5,7 +5,7 @@ home: https://www.danswer.ai/
 sources:
   - "https://github.com/stackhpc/danswer"
 type: application
-version: 0.2.3-prerelease.4
+version: 0.2.3
 appVersion: v0.7.4
 dependencies:
   - name: postgresql