github-ci: skip running tests for tarantool 2.10

This patch skips tests run for tarantool 2.10 in reusable_testing.yml
workflow due to the bug [1]. After [1] is fixed, the skip condition
should be removed from the workflow.

[1] #96

.github/workflows/reusable_testing.yml

@@ -31,6 +31,13 @@ jobs:
         # dependencies when migrating to other OS version.
         run: sudo dpkg -i tarantool_*.deb tarantool-common_*.deb tarantool-dev_*.deb
 
+      # TODO: Remove this when https://github.com/tarantool/memcached/issues/96
+      # is resolved.
+      - name: Get the tarantool version
+        run: |
+          TNT_VERSION=$(tarantool --version | grep -e '^Tarantool')
+          echo "TNT_VERSION=$TNT_VERSION" >> $GITHUB_ENV
+
       - name: Setup python2 for tests
         uses: actions/setup-python@v2
         with:
@@ -44,3 +51,7 @@ jobs:
 
       - run: cmake . && make
       - run: make test-memcached
+        # TODO: Remove this when https://github.com/tarantool/memcached/issues/96
+        # is resolved.
+        if: ${{ startsWith(env.TNT_VERSION, 'Tarantool 1.10') ||
+          startsWith(env.TNT_VERSION, 'Tarantool 2.8') }}