message: Fix fish completion name in deb installer
diff: @@ -76,7 +76,7 @@ assets = [
  ["target/release/alacritty", "usr/local/bin/", "755"],
  ["alacritty.desktop", "usr/share/applications/", "644"],
  ["alacritty-completions.bash", "usr/share/bash-completion/completions/alacritty", "644"],
  - ["alacritty-completions.fish", "usr/share/fish/completions/alacritty", "644"],
  + ["alacritty-completions.fish", "usr/share/fish/completions/alacritty.fish", "644"],
  ["alacritty-completions.zsh", "usr/share/zsh/vendor-completions/_alacritty", "644"],
  ["alacritty.info", "usr/share/terminfo/a/alacritty", "644"],
  ]
  