Fix issue with postgres backup hook

charts/sapl/v0.2.0/templates/velero-schedule-monthly.yaml

@@ -54,7 +54,7 @@ spec:
               command: 
                 - "/bin/bash"
                 - "-c"
-                - "/opt/bitnami/postgresql/bin/pg_dump -U postgres sapl > /bitnami/postgresql/sapl.dump"
+                - "'PGPASSWORD=$POSTGRES_PASSWORD /opt/bitnami/postgresql/bin/pg_dump -U sapl sapl > /bitnami/postgresql/sapl.dump'" 
               timeout: 360s
   useOwnerReferencesInBackup: false
 {{- end }}

charts/sapl/v0.2.0/templates/velero-schedule-weekdays.yaml

@@ -54,7 +54,7 @@ spec:
               command: 
                 - "/bin/bash"
                 - "-c"
-                - "/opt/bitnami/postgresql/bin/pg_dump -U postgres sapl > /bitnami/postgresql/sapl.dump"
+                - "'PGPASSWORD=$POSTGRES_PASSWORD /opt/bitnami/postgresql/bin/pg_dump -U sapl sapl > /bitnami/postgresql/sapl.dump'"
               timeout: 360s
   useOwnerReferencesInBackup: false
 {{- end }}

charts/sapl/v0.2.0/templates/velero-schedule-weekly.yaml

@@ -54,7 +54,7 @@ spec:
               command: 
                 - "/bin/bash"
                 - "-c"
-                - "/opt/bitnami/postgresql/bin/pg_dump -U postgres sapl > /bitnami/postgresql/sapl.dump"
+                - "'PGPASSWORD=$POSTGRES_PASSWORD /opt/bitnami/postgresql/bin/pg_dump -U sapl sapl > /bitnami/postgresql/sapl.dump'" 
               timeout: 360s
   useOwnerReferencesInBackup: false
 {{- end }}