Update schema

Signed-off-by: Claudio Spiess <[email protected]>

Author: claudiosv

src/pdl/pdl-schema.json

@@ -1698,7 +1698,8 @@
             "python",
             "command",
             "jinja",
-            "pdl"
+            "pdl",
+            "ipython"
           ],
           "title": "Lang",
           "type": "string"