treewide: clean up 'meta = with' pattern

This commit was created by a combination of scripts and tools:
- an ast-grep script to prefix things in meta with `lib.`,
- a modified nixf-diagnose / nixf combination to remove unused `with
lib;`, and
- regular nixfmt.

Co-authored-by: Wolfgang Walther <walther@technowledgy.de>

pkgs/development/tools/devpi-server/default.nix

@@ -131,11 +131,11 @@ buildPythonApplication rec {
     rev-prefix = "server-";
   };
 
-  meta = with lib; {
+  meta = {
     homepage = "http://doc.devpi.net";
     description = "Github-style pypi index server and packaging meta tool";
     changelog = "https://github.com/devpi/devpi/blob/${src.rev}/server/CHANGELOG";
-    license = licenses.mit;
-    maintainers = with maintainers; [ makefu ];
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ makefu ];
   };
 }