ac93a00745
server.py tries to launch a matrix_sso_helper binary when connecting to a homeserver that uses some SSO mechanism instead of plain login and password, but doesn't have $out/bin in $PATH. Using substituteInPlace to patch server.py so that the helper process is started by using its actual filesystem location instead of relying on $PATH. Fixes: https://github.com/NixOS/nixpkgs/issues/124186 (cherry picked from commit f7ccc5f35d0e1fe11a7e01e3dddd1ff28566ba1d)