Wrong conversion of dependsOn when item is a variable

**Bicep version**
Bicep CLI version 0.4.1124 (66c84c8ee5)

**Describe the bug**
When running `az bicep decompile --file template.json`

Given the variable:

```
"keyVaultResourceId": "[resourceId('Microsoft.KeyVault/vaults', parameters('keyVaultName'))]",
```

And a dependency like:

```
"dependsOn": ["[variables('keyVaultResourceId')]"],
```

The error message:

```
Error BCP034: The enclosing array expected an item of type "module[] | (resource | module) | resource[]", but the provided item was of type "string".
```

is shown and the conversion produces:

```
var keyVaultResourceId = keyVaultName_resource.id
...
dependsOn: [
keyVaultResourceId
]
```

**To Reproduce**
See above

**Additional context**
Thanks for the great work on the decompile functionality! It saved us a lot of time.

Start by reproducing the issue with `az bicep decompile --file template.json` using the variable and `dependsOn` examples from the report. Trace the decompiler's handling of variable-based dependency items and verify that the output no longer produces the BCP034 error and represents the dependency correctly.

Written by the indexing model from the issue text.