Unpin cattrs (#20872)

This was pinned because of issue mentioned in #16172 . However this was fixed in 1.8.0 of cattrs by python-attrs/cattrs#151

Changelog entry - https://cattrs.readthedocs.io/en/latest/history.html#id9

setup.cfg

@@ -85,8 +85,7 @@ install_requires =
     attrs>=20.0, <21.0
     blinker
     cached_property~=1.5;python_version<="3.7"
-    # cattrs >= 1.7.0 break lineage - see https://github.com/apache/airflow/issues/16172
-    cattrs~=1.1, <1.7.0
+    cattrs~=1.1, !=1.7.*
     # Required by vendored-in connexion
     clickclick>=1.2
     colorlog>=4.0.2, <6.0