Update grafana/promtail Docker tag to v3

manifests/grist/grist.yaml

@@ -75,7 +75,7 @@ spec:
       priorityClassName: critical
       containers:
         - name: grist
-          image: gristlabs/grist-oss:1.7.6
+          image: gristlabs/grist-oss:1.7.5
           imagePullPolicy: IfNotPresent
           ports:
             - name: http

manifests/traefik/traefik.yaml

@@ -45,7 +45,7 @@ spec:
         - --entrypoints.websecure.http.tls=true
         - --entrypoints.web.http.redirections.entrypoint.to=websecure
         - --entrypoints.web.http.redirections.entrypoint.scheme=https
-        image: rancher/mirrored-library-traefik:2.11.30
+        image: rancher/mirrored-library-traefik:2.11.29
         imagePullPolicy: IfNotPresent
         livenessProbe:
           failureThreshold: 3