Add Tarantool v2.8.0 to the test matrix

Author: rybakit

.github/workflows/qa.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   tests:
     env:
-      TNT_IMAGE: tarantool/tarantool:2.7
+      TNT_IMAGE: tarantool/tarantool:2.8.0
       PHP_IMAGE: php:8.0-cli
     strategy:
       matrix:
@@ -33,6 +33,7 @@ jobs:
           - TNT_IMAGE: tarantool/tarantool:2.4
           - TNT_IMAGE: tarantool/tarantool:2.5
           - TNT_IMAGE: tarantool/tarantool:2.6
+          - TNT_IMAGE: tarantool/tarantool:2.7
 
     runs-on: ${{ matrix.operating-system }}
     steps: