install most recent argcomplete for extra

I don't see any reason to limit ourselves to argcomplete 2.

Signed-off-by: Kevin Locke <[email protected]>

Author: kevinoid

setup.cfg

@@ -64,7 +64,7 @@ console_scripts =
 # https://setuptools.pypa.io/en/latest/userguide/dependency_management.html#optional-dependencies
 [options.extras_require]
 argcomplete =
-    argcomplete ~= 2.0
+    argcomplete
 
 [options.packages.find]
 exclude =