chore: Fixed matrix build in .travis.yml

Author: edgardmessias

.travis.yml

@@ -7,17 +7,10 @@ os:
   - linux
   - osx
 
-matrix:
-  include:
-    - env: CODE_VERSION=1.20.0
-    - env: CODE_VERSION=1.21.0
-    - env: CODE_VERSION=1.22.0
-    - env: CODE_VERSION=1.23.0
-    - env: CODE_VERSION=1.24.0
-    - env: CODE_VERSION=1.25.0
-    - env: CODE_VERSION=insiders
-  allow_failures:
-    - env: CODE_VERSION=insiders
+env:
+  - CODE_VERSION=1.20.0 # Minimal Version
+  - CODE_VERSION=* # Last Stable Version
+  - CODE_VERSION=insiders # Insider Version
 
 cache:
   directories:
@@ -32,9 +25,8 @@ before_install:
 
 install:
   - npm install
-  #- npm run prettier
   - npm run vscode:prepublish
-  # For coverage
+  # For coverage, disable automatic start of extension
   - sed -i.bak 's/"\*"//g' package.json
 
 script:
@@ -60,3 +52,5 @@ jobs:
         - npm run build
         - npm run semantic-release
       after_success: skip
+  allow_failures:
+    - env: CODE_VERSION=insiders