Preserve annotations and labels on SealedSecret objects

**Which component**:
0.27.1

**Is your feature request related to a problem? Please describe.**
Sealed Secrets is often used with ArgoCD/Flux. In ArgoCD, `argocd.argoproj.io/sync-wave` annotation is used everywhere to control the priority of the git sync operation. Because `SealedSecret` object doesn't preserve any annotations and labels, it requires manual update of the json file after running kubeseal command.

**Describe the solution you'd like**
Easiest solution would be just preserve the same annotations and labels from the kubeseal input secret.

**Describe alternatives you've considered**
N/A

**Additional context**

Input secret
```json
{
"kind": "Secret",
"apiVersion": "v1",
"metadata": {
"name": "s3-access",
"namespace": "loki",
"annotations": {
"argocd.argoproj.io/sync-wave": "-10"
}
},
"stringData": {
"foo": "bar"
}
}
```

Output SealedSecret
```json
{
"kind": "SealedSecret",
"apiVersion": "bitnami.com/v1alpha1",
"metadata": {
"name": "s3-access",
"namespace": "loki",
"annotations": {
"argocd.argoproj.io/sync-wave": "-10" // This is what we want
},
"creationTimestamp": null
},
"spec": {
"template": {
"metadata": {
"name": "s3-access",
"namespace": "loki",
"creationTimestamp": null,
"annotations": {
"argocd.argoproj.io/sync-wave": "-10"
}
}
},
"encryptedData": {
"foo": "AgBNnuq7/9OG+...."
}
}
}
```

The previous feature request was closed incorrectly. https://github.com/bitnami-labs/sealed-secrets/issues/460