Amend the test matrix for Symfony 6.1

Author: mpdude

.github/workflows/build.yml

@@ -25,9 +25,14 @@ jobs:
                     - '4.4.*'
                     - '5.4.*'
                     - '6.0.*'
+                    - '6.1.*'
                 exclude:
                     - php-version: '7.4'
                       symfony-version: '6.0.*'
+                    - php-version: '7.4'
+                      symfony-version: '6.1.*'
+                    - php-version: '8.0'
+                      symfony-version: '6.1.*'
         steps:
             - name: Checkout
               uses: actions/checkout@v3