ci: drop testing on older versions

Versions in question are not supported for at least two years from
now [1].

1. https://www.tarantool.io/en/doc/latest/release/calendar/

Part of #365

.github/workflows/test_on_push.yaml

@@ -11,23 +11,17 @@ jobs:
       github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name != github.repository
     strategy:
       matrix:
-        # We need 1.10.6 here to check that module works with
-        # old Tarantool versions that don't have "tuple-keydef"/"tuple-merger" support.
         # We test old metrics with Tarantool 2.10 because since Tarantool 2.11.1
         # it uses its own metrics package.
         # We test old metrics with Cartridge 2.7.9 because since 2.8.0 it
         # requires metrics 1.0.0.
-        tarantool-version: ["1.10.6", "1.10", "2.2", "2.3", "2.4", "2.5", "2.6", "2.7", "2.8", "2.10", "2.11"]
+        tarantool-version: ["1.10", "2.8", "2.10", "2.11"]
         metrics-version: [""]
         cartridge-version: ["2.8.0"]
-        remove-merger: [false]
         include:
           - tarantool-version: "1.10"
             metrics-version: "1.0.0"
             cartridge-version: "2.8.0"
-          - tarantool-version: "2.7"
-            remove-merger: true
-            cartridge-version: "2.8.0"
           - tarantool-version: "2.10"
             metrics-version: "0.10.0"
             cartridge-version: "2.7.9"
@@ -85,11 +79,6 @@ jobs:
         if: matrix.tarantool-version == 'master'
         run: echo "${GITHUB_WORKSPACE}/bin" >> $GITHUB_PATH
 
-      - name: Fix luarocks in Tarantool CE 1.10.6
-        if: matrix.tarantool-version == '1.10.6'
-        run: |
-          sudo patch -p1 /usr/share/tarantool/luarocks/manif.lua luarocks.patch
-
       - name: Install requirements for community
         run: |
           tarantool --version

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Changed
+* Drop testing on Tarantool 1.10.6 and Tarantool 2.x older than 2.8 (#365).
+
 ## [1.4.0] - 16-10-23
 
 ### Added