ci(travis): filter by v1.x branch

Remove building for phpDocumentor 3 and use Node 16.

Author: nelson6e65

.travis.yml

@@ -1,11 +1,16 @@
 language: php
 
+branches:
+  only:
+    - v1.x
+
 php:
   - 5.6
   - 7.0
   - 7.1
   - 7.2
   - 7.3
+  - 7.4
 
 cache:
   - npm
@@ -19,16 +24,13 @@ env:
 matrix:
   fast_finish: false
   include:
-    - php: 7.2
-      env: PHPDOC=3
     - php: 7.2
       env: DEPLOY_DOCS=true
 
   allow_failures:
-    - php: 7.2
-      env: PHPDOC=3
     - php: 5.6
     - php: 7.0
+    - php: 7.4
 
 before_install:
   # Update composer
@@ -43,31 +45,15 @@ before_install:
   - composer global config prefer-stable true
   - export PATH="$(composer config -g home)/vendor/bin:$PATH"
 
-  # Use Nove v8
-  - nvm use v8
-
-  # Install/update Yarn
-  - curl -o- -L https://yarnpkg.com/install.sh | bash
-  - export PATH=$HOME/.yarn/bin:$PATH
+  # Use Node 16
+  - nvm use 16
 
 install:
-  - | # phpDocumentor 3-dev
-    if [[ $PHPDOC == '3' ]]; then
-      composer global require phpdocumentor/phpdocumentor:dev-develop
-      composer global require symfony/dotenv
-    fi
-
   - composer install --no-interaction
   - npm install
 
 script:
-  - |
-    if [[ $PHPDOC == '3' ]]; then
-      phpdoc -d demo/ -t docs/demo/ --force --template=data/templates/vuepress/
-    else
-      composer build:api
-    fi
-
+  - composer build:api
   - npm run docs:build
 
 deploy:
@@ -78,6 +64,6 @@ deploy:
   local-dir: dist/phpdoc-vuepress
   project-name: "nelson6e65/phpdoc-vuepress [${TRAVIS_COMMIT_RANGE}]"
   on:
-    branch: master
+    branch: v1.x
     condition: $DEPLOY_DOCS = true
   verbose: true