Add typing to empty

Added in conda-forge/typing-feedstock@862d1c4

Author: BastianZim

src/maintainer/knowledge_base.rst

@@ -866,9 +866,11 @@ Currently available packages:
 
 +-------------+-------------------+--------------+
 | Name        | Available on:     | Empty on:    |
-+=============+===================+==============+
++-------------+-------------------+--------------+
 | dataclasses | python >=3.6,<3.7 | python >=3.7 |
 +-------------+-------------------+--------------+
+| typing      |                   | python >=3   |
++-------------+-------------------+--------------+
 
 
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