feat: Add support for memgraph-lab chart secrets (#1462)

* feat: Add support for secrets to memgraph-lab chart

* fix: Typo

---------

Co-authored-by: Matea Pesic <80577904+matea16@users.noreply.github.com>

Author: as51340

pages/getting-started/install-memgraph/kubernetes.mdx

@@ -839,6 +839,9 @@ and their default values.
 | `serviceAccount.create`      | Specifies whether a service account should be created                                                   | `true`                                 |
 | `serviceAccount.annotations` | Annotations to add to the service account                                                               | `{}`                                   |
 | `serviceAccount.name`        | The name of the service account to use. If not set and create is true, a name is generated.             | `""`                                   |
+| `secrets.enabled`            | Enable the use of Kubernetes secrets. Will be injected as env variables.                                | `false`                                |
+| `secrets.name`               | The name of the Kubernetes secret that will be used.                                                    | `memgraph-secrets`                     |
+| `secrets.keys`               | Keys from the `secrets.name` that will be stored as env variables inside the pod.                       | `[]`                                   |
 
 Memgraph Lab can be further configured with environment variables in your
 `values.yaml` file.