python3Packages.spyder: fix build

* Remove version locks that don't match what's in nixpkgs

(cherry picked from commit 3b6800c76a53426de8fe7c4ca09eaa56844d4cde)

pkgs/development/python-modules/spyder/default.nix

···
     # remove dependency on pyqtwebengine
     # this is still part of the pyqt 5.11 version we have in nixpkgs
     sed -i /pyqtwebengine/d setup.py
-    substituteInPlace setup.py --replace "pyqt5<5.13" "pyqt5"
+    substituteInPlace setup.py \
+      --replace "pyqt5<5.13" "pyqt5" \
+      --replace "parso==0.7.0" "parso" \
+      --replace "jedi==0.17.1" "jedi"
   '';
 
   postInstall = ''