Revert "Update Tarantool versions in test matrix"

This reverts commit 5edf027.
We will remove support of Tarantool version a bit later.

Author: ligurio

.github/workflows/test_on_push.yaml

@@ -11,7 +11,7 @@ jobs:
       github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name != github.repository
     strategy:
       matrix:
-        tarantool-version: ["1.10", "2.2", "2.3", "2.7", "2.8"]
+        tarantool-version: ["1.10", "2.2", "2.3", "2.4", "2.5", "2.6", "2.7"]
         remove-merger: [false]
         include:
           - tarantool-version: "2.7"

CHANGELOG.md

@@ -9,9 +9,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Changed
 
-* Tarantool versions 2.{4,5,6} have reached EOL and removed from regression
-  testing. It means that methods `crud.min()` and `crud.max` won't work for old
-  versions (< 1.10.8) anymore.
 * Names of errors generated by CRUD operations have been unified.
 
 ### Added