chore(deps): update helm chart promtail to v3 (#1381)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

charts/incubator/loki/Chart.yaml

@@ -7,7 +7,7 @@ dependencies:
 - name: "promtail"
   condition: promtail.enabled
   repository: "https://grafana.github.io/helm-charts"
-  version: "^2.2.0"
+  version: "^3.0.0"
 deprecated: false
 description: "Loki: like Prometheus, but for logs."
 home: https://github.com/truecharts/apps/tree/master/charts/stable/loki
@@ -23,7 +23,7 @@ name: loki
 sources:
   - https://github.com/grafana/loki
 type: application
-version: 0.0.1
+version: 1.0.0
 annotations:
   truecharts.org/catagories: |
     - logs