fix type certificates

deployment/memgraph/certificates.yaml

@@ -0,0 +1,22 @@
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: memraph-certificate
+  annotations:
+    argocd.argoproj.io/hook: PreSync
+spec:
+  isCA: false
+  duration: 2160h # 90d
+  renewBefore: 360h # 15d
+  subject:
+    organizations:
+      - jetstack
+  secretName: memgraph-tls
+  privateKey:
+    algorithm: RSA
+    encoding: PKCS1
+    size: 2048
+  issuerRef:
+    name: default-cluster-ca-issuer
+    kind: ClusterIssuer
+    group: cert-manager.io