Semi-automatic update. These checks were performed:
- built on NixOS
- found 3.4.5 with grep in /nix/store/z24cwnyn0qhdxr11d6bh5cjakagdj3n3-libexttextcat-3.4.5
- found 3.4.5 in filename of file in /nix/store/z24cwnyn0qhdxr11d6bh5cjakagdj3n3-libexttextcat-3.4.5