Allow PHP 8.0 CI to fail on QA branch as the requirements of this branch are before PHP 8.x

Signed-off-by: William Desportes <[email protected]>

Author: williamdes

.github/workflows/tests.yml

@@ -15,11 +15,13 @@ jobs:
         continue-on-error: ${{ matrix.experimental }}
         strategy:
             matrix:
-                php-version: ["5.3", "5.4", "5.5", "5.6", "7.1", "7.2", "7.3", "7.4", "8.0"]
+                php-version: ["5.3", "5.4", "5.5", "5.6", "7.1", "7.2", "7.3", "7.4"]
                 os: [ubuntu-latest]
                 experimental: [false]
                 composer-options: ['']
                 include:
+                  # Non official support but still try to run tests against the code
+                  - { php-version: '8.0', experimental: true, os: ubuntu-latest, composer-options: '--ignore-platform-reqs' }
                   - { php-version: '8.1', experimental: true, os: ubuntu-latest, composer-options: '--ignore-platform-reqs' }
         steps:
             - uses: actions/checkout@v2