minor #248 [LiveComponents] adding versionadded for action arguments (weaverryan)

This PR was merged into the 2.x branch.

Discussion
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[LiveComponents] adding versionadded for action arguments

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Tickets       | Relates to #218
| License       | MIT

For #218 - we've recently started adding these to the docs to help highlight why a feature might not work (especially if that feature isn't released yet!)

Commits
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82b7307 adding versionadded for action arguments

Author: kbond

src/LiveComponent/src/Resources/doc/index.rst

@@ -555,6 +555,10 @@ This means that, for example, you can use action autowiring::
 Actions & Arguments
 ^^^^^^^^^^^^^^^^^^^
 
+.. versionadded:: 2.1
+
+    The ability to pass arguments to actions was added in version 2.1.
+
 You can also provide custom arguments to your action::
 
 .. code-block:: twig