Update dependency setuptools to v84

Author: renovate[bot]

requirements.txt

@@ -3,7 +3,7 @@ cffsubr==0.4.0
 defcon==0.12.2
 dehinter>=4.0.0
 fonttools[woff,pathops,unicode]==4.63.0
-setuptools==83.0.0
+setuptools==84.0.0
 ttfautohint-py==0.6.1
 ufo-extractor==0.8.1
 ufo2ft==3.9.0