Update TeachableMachine to 20250312

Change-Id: I72c1e37ddc28ac06a5561a6b018b8a81a9a536eb

Author: ewpatton

data/extensions/edu.mit.appinventor.ai.teachablemachine.aix

@@ -175,7 +175,7 @@ <h1>Supported:</h1>
                 Use vision models trained in TeachableMachine with your device's camera.
               </td>
               <td>MIT App Inventor</td>
-              <td>1</td>
+              <td>20250312</td>
               <td><a href="data/extensions/edu.mit.appinventor.ai.teachablemachine.aix">TeachableMachine.aix</a></td>
               <td><a href="https://github.com/mit-cml/appinventor-extensions/tree/extension/teachable-machine">Via GitHub</a></td>
           </tr>                                                        </tbody>