Updated chart for postgres 13.0 (#15)

charts/postgres/Chart.yaml

@@ -8,7 +8,7 @@ maintainers:
   - name: groundhog2k
 
 # This is the chart version
-version: 0.1.0
+version: 0.1.1
 
 # This is the version number of the application being deployed.
-appVersion: "12.4"
+appVersion: "13.0"