ci: drop 2.4-2.9 releases from CI

We have no packages built against Ubuntu Jammy (22.04) for tarantool
2.4-2.9, while the previous Ubuntu version is not supported anymore by
GitHub hosted runners. It is problematic to test installation of these
versions in CI.

In fact, these versions are not supported for a long time, so let's just
drop them from the testing.

Author: Totktonada

.github/workflows/test.yml

@@ -11,12 +11,6 @@ jobs:
         runs-on: [ubuntu-22.04]
         tarantool:
           - '1.10'
-          - '2.4'
-          - '2.5'
-          - '2.6'
-          - '2.7'
-          - '2.8'
-          - '2.9'
           - '2.10'
           - '2.11'
           - '3.0'