kapacitor: 1.0.0 -> 1.4.0

Semi-automatic update. These checks were performed:

- built on NixOS
- ran `/nix/store/zc5x872jh6g02y47rfa2giw7wjypnq12-kapacitor-1.4.0-bin/bin/kapacitord -h` got 0 exit code
- ran `/nix/store/zc5x872jh6g02y47rfa2giw7wjypnq12-kapacitor-1.4.0-bin/bin/kapacitord help` got 0 exit code
- ran `/nix/store/zc5x872jh6g02y47rfa2giw7wjypnq12-kapacitor-1.4.0-bin/bin/tickfmt help` got 0 exit code
- found 1.4.0 with grep in /nix/store/zc5x872jh6g02y47rfa2giw7wjypnq12-kapacitor-1.4.0-bin
- found 1.4.0 in filename of file in /nix/store/zc5x872jh6g02y47rfa2giw7wjypnq12-kapacitor-1.4.0-bin

cc "@offline @ehmry @lethalman"