babashka: add installCheckPhase to check for proper Unicode support

    doInstallCheck = true;

    installCheckPhase = ''

      $out/bin/bb --version | grep '${version}'

      $out/bin/bb '(+ 1 2)' | grep '3'

      $out/bin/bb '(vec (dedupe *input*))' <<< '[1 1 1 1 2]' | grep '[1 2]'

      $out/bin/bb --version | fgrep '${version}'

      $out/bin/bb '(+ 1 2)' | fgrep '3'

      $out/bin/bb '(vec (dedupe *input*))' <<< '[1 1 1 1 2]' | fgrep '[1 2]'

      $out/bin/bb '(prn "bépo àê")' | fgrep 'bépo àê'

    '';

    # As of v1.2.174, this will remove references to ${graalvmDrv}/conf/chronology,