infisical: add resource requests and limits to postgres and valkey

Both ran as BestEffort QoS, making them first in line for eviction
under node memory pressure. Requests also give the scheduler real
numbers to place them with.

applications/infisical/postgres/statefulset.yaml

@@ -53,6 +53,12 @@ spec:
               command: ["sh", "-c", "pg_isready -U $POSTGRES_USER -d $POSTGRES_DB"]
             initialDelaySeconds: 30
             periodSeconds: 15
+          resources:
+            requests:
+              cpu: 100m
+              memory: 256Mi
+            limits:
+              memory: 512Mi
   volumeClaimTemplates:
     - metadata:
         name: data

applications/infisical/valkey/statefulset.yaml

@@ -29,6 +29,12 @@ spec:
               command: ["valkey-cli", "ping"]
             initialDelaySeconds: 5
             periodSeconds: 10
+          resources:
+            requests:
+              cpu: 50m
+              memory: 64Mi
+            limits:
+              memory: 256Mi
   volumeClaimTemplates:
     - metadata:
         name: data