chore: isAIAction uses the wrong interface (#33171)

## Description
Fix type for isAIAction.


Fixes #33170  

## Automation

/ok-to-test tags="@tag.All"

### 🔍 Cypress test results
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> [!CAUTION]  
> If you modify the content in this section, you are likely to disrupt
the CI result for your PR.

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## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [X] No

app/client/src/entities/Action/index.ts

@@ -273,7 +273,7 @@ export function isSaaSAction(action: Action): action is SaaSAction {
   return action.pluginType === PluginType.SAAS;
 }
 
-export function isAIAction(action: Action): action is SaaSAction {
+export function isAIAction(action: Action): action is AIAction {
   return action.pluginType === PluginType.AI;
 }