Test more versions in the matrix

Author: ondrejmirtes

.github/workflows/integration-tests.yml

@@ -21,6 +21,11 @@ jobs:
  php-version:
  - "7.4"
  - "8.0"
+ - "8.1"
+ composer-version:
+ - "v2"
+ - "preview"
+ - "snapshot"
 
  steps:
  - name: "Checkout"
@@ -31,6 +36,7 @@ jobs:
  with:
  coverage: "none"
  php-version: "${{ matrix.php-version }}"
+ tools: "composer:${{ matrix.composer-version }}"
 
  - name: "Install dependencies"
  working-directory: "e2e"