Restrict script language versions

Closes #874

Signed-off-by: Charles d'Avernas <charles.davernas@neuroglia.io>

Author: cdavernas

dsl-reference.md

@@ -825,12 +825,21 @@ Enables the execution of custom scripts or code within a workflow, empowering wo
 
 | Name | Type | Required | Description |
 |:--|:---:|:---:|:---|
-| language | `string` | `yes` | The language of the script to run |
+| language | `string` | `yes` | The language of the script to run.<br>*Supported values are: [`js`](https://tc39.es/ecma262/2024/) and [`python`](https://www.python.org/downloads/release/python-3131/).* |
 | code | `string` | `no` | The script's code.<br>*Required if `source` has not been set.* |
 | source | [externalResource](#external-resource) | `no` | The script's resource.<br>*Required if `code` has not been set.* |
 | arguments | `map` | `no` | A list of the arguments, if any, of the script to run |
 | environment | `map` | `no` | A key/value mapping of the environment variables, if any, to use when running the configured script process |
 
+> [!WARNING]
+> To ensure cross-compatibility, Serverless Workflow strictly limits the versions of supported scripting languages. These versions may evolve with future releases. If you wish to use a different version of a language, you may do so by utilizing the [`container process`](#container-process).
+
+**Supported languages**
+| Language | Version |
+|:-----------|:---------:|
+| `JavaScript` | [`ES2024`](https://tc39.es/ecma262/2024/) |
+| `Python` | [`3.13.1`](https://www.python.org/downloads/release/python-3131/) |
+
 ###### Examples
 
 ```yaml

dsl.md

@@ -348,7 +348,8 @@ When the evaluation of an expression fails, runtimes **must** raise an error wit
 | workflow | [`workflowDescriptor`](#workflow-descriptor) | Describes the current workflow. |
 | runtime | [`runtimeDescriptor`](#runtime-descriptor) | Describes the runtime. |
 
-⚠️ **Warning**: Use `$secrets` with caution: incorporating them in expressions or passing them as call inputs may inadvertently expose sensitive information.
+> [!WARNING] 
+> Use `$secrets` with caution: incorporating them in expressions or passing them as call inputs may inadvertently expose sensitive information.
 
 ##### Runtime Descriptor
 
@@ -407,7 +408,8 @@ The following table shows which arguments are available for each runtime express
 | Task `export.as` | Transformed task output | `$context` | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
 | Workflow `output.as` | Last task's transformed output | Transformed workflow output | ✔ | | | ✔ | | ✔ | ✔ | |
 
-⚠️ **Warning**: Use `$secrets` with caution: incorporating them in expressions or passing them as call inputs may inadvertently expose sensitive information.
+> [!WARNING]
+> Use `$secrets` with caution: incorporating them in expressions or passing them as call inputs may inadvertently expose sensitive information.
 
 ### Fault Tolerance