Use latest OS

RoSk0 · RoSk0 · commit 30644cf30465 · 2023-11-07T09:12:58.000+13:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,8 +1,13 @@
+os: linux
 language: php
-php:
-   - '8.0'
-   - '8.1'
-   - '8.2'
+jobs:
+  include:
+    - php: '8.0'
+      dist: focal
+    - php: '8.1'
+      dist: jammy
+    - php: '8.2'
+      dist: jammy
 
 before_script: composer install
 script:
