Adding CA certificate into Coder template failing build (k8s)

Using the [devcontainer Coder template](https://github.com/coder/coder/blob/main/examples/templates/kubernetes-devcontainer/main.tf) I'm seeing the following issue when mounting my CA certificates:

```bash
error: temp remount: temp remount: bind mount /ca-certs/ca-file => /.envbuilder/mnt/ca-certs/ca-file: permission denied
```

Adding certificate directory to ENV:
```hcl

locals {
...
"SSL_CERT_DIR" : "/ca-certs"
//or
"SSL_CERT_FILE": "/ca-certs/ca-file"
}
```

```hcl
resource "kubernetes_deployment" "main" {
...

spec {
template {
spec {
...
volume_mount {
name = "ca-file"
mount_path = "/ca-certs/ca-file"
}
}

volume {
name = "ca-file"
secret {
secret_name = "coder-tls"
}
...
}
}
```

Just trying to have the container built trust my private PKI services.

Comienza con examples/templates/kubernetes-devcontainer/main.tf y reproduce el montaje del certificado CA en Kubernetes utilizando la configuración indicada. Rastrea cómo el constructor del entorno gestiona el bind mount /ca-certs/ca-file y verifica que una compilación pueda confiar en la PKI privada sin que se produzca el permission-denied remount error.

Escrito por el modelo de indexación a partir del texto del issue.