downgrade click on CI for use with black==21.6b0

alexcjohnson · alexcjohnson · commit c2c7ee0881fe · 2022-03-29T17:16:05.000-04:00
new click==8.1.0 fails, but 8.0.4 is fine.
diff --git a/requires-ci.txt b/requires-ci.txt
@@ -1,5 +1,6 @@
 # Dependencies used by CI on github.com/plotly/dash
 black==21.6b0
+click==8.0.4
 dash-flow-example==0.0.5
 dash-dangerously-set-inner-html
 flake8==3.9.2
