ci: remove docker install and update twig

Author: TorstenDittmann

.travis.yml

@@ -1,15 +1,18 @@
 
-dist: xenial
+dist: focal
 
 arch:
   - amd64
 
+services:
+  - docker
+
 os: linux
 
 language: php
 
 php:
-  - 7.4
+  - 8.0
 
 env:
   - SDK=Android
@@ -31,11 +34,6 @@ notifications:
     - [email protected]
 
 before_install:
-  - curl -fsSL https://get.docker.com | sh
-  - echo '{"experimental":"enabled"}' | sudo tee /etc/docker/daemon.json
-  - mkdir -p $HOME/.docker
-  - echo '{"experimental":"enabled"}' | sudo tee $HOME/.docker/config.json
-  - sudo service docker start
   - >
     if [ ! -z "${DOCKERHUB_PULL_USERNAME:-}" ]; then
       echo "${DOCKERHUB_PULL_PASSWORD}" | docker login --username "${DOCKERHUB_PULL_USERNAME}" --password-stdin

composer.json

@@ -23,7 +23,7 @@
         "ext-curl": "*",
         "ext-mbstring": "*",
         "ext-json": "*",
-        "twig/twig": "^2.14",
+        "twig/twig": "^3.3.7",
         "matthiasmullie/minify": "^1.3"
     },
     "require-dev": {