protobuf: 33.5 -> 34.0

Diff: https://github.com/protocolbuffers/protobuf/compare/v33.5...v34.0

Changelog:
https://github.com/protocolbuffers/protobuf/releases/tag/v34.0

pkgs/top-level/all-packages.nix

@@ -7292,7 +7292,7 @@ with pkgs;
 
   # this version should align with the static protobuf version linked into python3.pkgs.tensorflow
   # $ nix-shell -I nixpkgs=$(git rev-parse --show-toplevel) -p python3.pkgs.tensorflow --run "python3 -c 'import google.protobuf; print(google.protobuf.__version__)'"
-  protobuf = protobuf_33;
+  protobuf = protobuf_34;
 
   inherit
     ({

pkgs/top-level/python-packages.nix

@@ -12794,7 +12794,7 @@ self: super: with self; {
   proto-plus = callPackage ../development/python-modules/proto-plus { };
 
   # If a protobuf upgrade causes many Python packages to fail, please pin it here to the previous version.
-  protobuf = protobuf6;
+  protobuf = protobuf7;
 
   protobuf3-to-dict = callPackage ../development/python-modules/protobuf3-to-dict { };