lcms2: 2.8 -> 2.9

Semi-automatic update. These checks were performed:

- built on NixOS
- ran `/nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin/bin/tificc --help` got 0 exit code
- ran `/nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin/bin/tificc help` got 0 exit code
- ran `/nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin/bin/linkicc --help` got 0 exit code
- ran `/nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin/bin/linkicc help` got 0 exit code
- ran `/nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin/bin/jpgicc --help` got 0 exit code
- ran `/nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin/bin/jpgicc help` got 0 exit code
- ran `/nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin/bin/psicc --help` got 0 exit code
- ran `/nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin/bin/psicc help` got 0 exit code
- found 2.9 with grep in /nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin
- found 2.9 in filename of file in /nix/store/qra3h0k7sckb5kdmicg9j8privyaw56i-lcms2-2.9-bin