pants: fix build (#46545)

See https://hydra.nixos.org/build/80727495

`pants' works with requests==2.19 to build successfully and `nixpkgs' currently uses `requests==2.19.1`.
Patching the version constraint in `setup.py' accordingly fixes the problem.

Addresses #45960

pkgs/development/tools/build-managers/pants/default.nix

@@ -17,6 +17,7 @@ in buildPythonApplication rec {
 
   prePatch = ''
     sed -E -i "s/'([[:alnum:].-]+)[=><][[:digit:]=><.,]*'/'\\1'/g" setup.py
+    substituteInPlace setup.py --replace "requests[security]<2.19,>=2.5.0" "requests[security]<2.20,>=2.5.0"
   '';
 
   # Unnecessary, and causes some really weird behavior around .class files, which