Update grafana/promtail Docker tag to v3

manifests/matrix_chart/matrix_chart.yaml

@@ -440,7 +440,7 @@ spec:
         fsGroup: 1000
       initContainers:
         - name: generate-signing-key
-          image: "ghcr.io/element-hq/synapse:v1.125.0"
+          image: "ghcr.io/element-hq/synapse:v1.124.0"
           imagePullPolicy: IfNotPresent
           env:
             - name: SYNAPSE_SERVER_NAME
@@ -467,7 +467,7 @@ spec:
               mountPath: /data/keys
       containers:
         - name: "synapse"
-          image: "ghcr.io/element-hq/synapse:v1.125.0"
+          image: "ghcr.io/element-hq/synapse:v1.124.0"
           imagePullPolicy: IfNotPresent
           ports:
             - name: http

manifests/nextcloud_chart/manifest.yaml

@@ -203,7 +203,7 @@ spec:
     spec:
       containers:
       - name: nextcloud
-        image: "nextcloud:31.0.0-apache"
+        image: "nextcloud:30.0.6-apache"
         imagePullPolicy: IfNotPresent
         env:
         - name: SQLITE_DATABASE
@@ -374,7 +374,7 @@ spec:
           restartPolicy: Never
           containers:
             - name: nextcloud
-              image: "nextcloud:31.0.0-apache"
+              image: "nextcloud:30.0.6-apache"
               imagePullPolicy: IfNotPresent
               command: [ "curl" ]
               args: