Update travis tests definition to use vim version from hirsute.

Author: snu5mumr1k

.travis.yml

@@ -1,26 +1,24 @@
 language: generic
+dist: focal
 env:
   matrix:
     - CI_TARGET=vim
     - CI_TARGET=neovim
 before_script:
-  - sudo apt-get update
-  - sudo apt-get install python3-dev
+  - sudo apt-add-repository 'deb http://archive.ubuntu.com/ubuntu/ hirsute main universe'
+  - sudo apt update
   - if [ $CI_TARGET = vim ]; then
-      sudo apt-get install vim-gnome;
+      sudo apt install vim vim-gtk;
     elif [ $CI_TARGET = neovim ]; then
-      eval "$(curl -Ss https://raw.githubusercontent.com/neovim/bot-ci/master/scripts/travis-setup.sh) nightly-x64" &&
-      wget https://bootstrap.pypa.io/get-pip.py &&
-      sudo python3 get-pip.py &&
-      sudo pip3 install neovim;
+      sudo apt install neovim python3-neovim
     fi
-  - wget https://github.com/google/vroom/releases/download/v0.13.0/vroom_0.13.0-1_all.deb
-  - sudo dpkg -i ./vroom_0.13.0-1_all.deb
+  - wget https://github.com/google/vroom/releases/download/v0.14.0/vroom_0.14.0-1_all.deb
+  - sudo dpkg -i ./vroom_0.14.0-1_all.deb
 services:
   - xvfb
 script:
   - '[ $CI_TARGET = neovim ] && VROOM_ARGS="--neovim" || VROOM_ARGS=""'
-  - vroom $VROOM_ARGS --crawl --skip=vroom/system-job.vroom
+  - vroom $VROOM_ARGS --crawl --skip=vroom/system-job.vroom  # system-job doesn't work with a fake tty.
 matrix:
   fast_finish: true
   allow_failures: