chore(snips): hint memory limit to Go

snips/resources/statefulset.yaml

@@ -53,6 +53,10 @@ spec:
                 secretKeyRef:
                   name: snips-secrets
                   key: hmackey
+            - name: GOMEMLIMIT
+              valueFrom:
+                resourceFieldRef:
+                  resource: limits.memory
           ports:
             - containerPort: 8080
               protocol: TCP