Fix CI (#371)

* dep: upgrade vscode-test to 1.5.0

* try: xenial with xvfb service

.travis.yml

@@ -3,16 +3,12 @@ sudo: required
 language: node_js
 node_js:
   - 10
-os:
-  - linux
+os: linux
+dist: xenial
+services:
+  - xvfb
 
 before_install:
-  - if [ $TRAVIS_OS_NAME == "linux" ]; then
-      export CXX="g++-4.9" CC="gcc-4.9";
-      export DISPLAY=':99.0'
-      /usr/bin/Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
-      sleep 3;
-    fi
   - curl --silent -L "https://s3-us-west-1.amazonaws.com/kite-data/tensorflow/libtensorflow-cpu-linux-x86_64-1.9.0.tar.gz" | tar -C $HOME -xz
   - export LD_LIBRARY_PATH="$HOME/lib:$LD_LIBRARY_PATH"
   - curl --silent --compressed --output "$HOME/kited-test" "https://s3-us-west-1.amazonaws.com/kited-test/linux/kited-test"

package.json

@@ -422,7 +422,7 @@
     "ts-loader": "^8.0.11",
     "typescript": "^4.0.5",
     "vsce": "^1.59.0",
-    "vscode-test": "^1.4.1",
+    "vscode-test": "^1.5.0",
     "webpack": "^5.10.3",
     "webpack-cli": "^4.2.0",
     "webpack-merge-and-include-globally": "^2.1.16",