travis: run tests for PHP 8.0 & 8.1 on bionic dist

Author: milo

.travis.yml

@@ -1,23 +1,21 @@
 language: php
 
 php:
-    - 5.4
-    - 5.5
-    - 5.6
-    - 7.0
-    - 7.1
-    - hhvm
+	- 8.0
+    - 8.1
 
-matrix:
-    allow_failures:
-        - php: hhvm
+install:
+    - travis_retry composer install --no-progress --prefer-dist
 
-before_script:
-    # Install Nette Tester
-    - composer install --no-interaction --prefer-source
-
-script: vendor/bin/tester -p php -s tests
+script:
+    - vendor/bin/tester -p php -s tests
 
 after_failure:
     # Print *.actual content
     - for i in $(find tests -name \*.actual); do echo "--- $i"; cat $i; echo; echo; done
+
+dist: bionic
+
+cache:
+    directories:
+        - $HOME/.composer/cache