feat(container): update vector group (#357)

| datasource | package         | from   | to     |
| ---------- | --------------- | ------ | ------ |
| docker     | timberio/vector | 0.20.0 | 0.29.1 |
| helm       | vector          | 0.7.0  | 0.21.1 |

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

cluster/apps/monitoring/vector-agent/helm-release.yaml

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: vector
-      version: 0.7.0
+      version: 0.21.1
       sourceRef:
         kind: HelmRepository
         name: vector-charts
@@ -20,7 +20,7 @@ spec:
   values:
     image:
       repository: timberio/vector
-      tag: 0.20.0-debian
+      tag: 0.29.1-debian
     role: Agent
     env:
       - name: VECTOR_WATCH_CONFIG