WIP: ci: use setup-tarantool action on Linux

It speed ups tarantool installation using GitHub's cache infrastructure.

We have no support of Mac OS in the action at the moment, so left it as
is for now.

Author: Totktonada

.github/workflows/testing.yml

@@ -3,8 +3,6 @@ name: testing
 on: [push, pull_request]
 
 # TODO: Run testing using luarocks installed module.
-# TODO: Use caching of fixed tarantool versions or improve
-#       setup-tarantool to use it here.
 
 jobs:
   testing_linux:
@@ -63,52 +61,20 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-      - name: Export T_* environment variables
+      - name: Export T_VERSION environment variable
         run: |
-          # Split ${{ matrix.tarantool }}.
+          # Extract the part after '/'.
           T="${{ matrix.tarantool }}"
-          T_KIND="${T%%/*}"
           T_VERSION="${T##*/}"
-          if [ "${T_KIND}" = release ]; then
-              T_SERIES="${T_VERSION%.*}"
-          else
-              T_SERIES="${T_VERSION}"
-          fi
 
-          # Make the variables available for the next steps.
-          printf '%s=%s\n' T_KIND    "${T_KIND}"    >> "${GITHUB_ENV}"
+          # Make the variable available for the next steps.
           printf '%s=%s\n' T_VERSION "${T_VERSION}" >> "${GITHUB_ENV}"
-          printf '%s=%s\n' T_SERIES  "${T_SERIES}"  >> "${GITHUB_ENV}"
-
-      - name: Setup tarantool ${{ env.T_SERIES }} repository
-        run: |
-          URL="https://tarantool.io/${T_KIND}/${T_SERIES}/installer.sh"
-          curl -fsSL "${URL}" > installer.sh
-          chmod a+x installer.sh
-          sudo ./installer.sh
 
       - name: Install tarantool ${{ matrix.tarantool }}
-        run: |
-          # Install tarantool.
-          #
-          # We don't use tarantool/setup-tarantool GitHub Action
-          # at the moment due to several reasons:
-          #
-          # 1. No way to install a non-last tarantool version from
-          #    a repository:
-          #    https://github.com/tarantool/setup-tarantool/issues/15
-          # 2. No way to install a live package:
-          #    https://github.com/tarantool/setup-tarantool/issues/9
-          # 3. We likely will install tarantool in a container
-          #    job and it'll require support from the action side:
-          #    https://github.com/tarantool/setup-tarantool/issues/11
-          sudo apt-get install -y "tarantool=${T_VERSION}*" "tarantool-dev=${T_VERSION}*"
-
-      - name: Verify tarantool version
-        run: |
-          # Workaround https://github.com/tarantool/tarantool/issues/4983
-          # Workaround https://github.com/tarantool/tarantool/issues/5040
-          tarantool -e "require('fiber').sleep(0) assert(_TARANTOOL:startswith('${T_VERSION}'), _TARANTOOL) os.exit()"
+        uses: tarantool/setup-tarantool@b82932abca5bab03fd77b7b9f5de7ed17f1fd204
+        with:
+          tarantool-version: '${{ env.T_VERSION }}'
+          nightly-build: ${{ startsWith(matrix.tarantool, 'live/') }}
 
       - name: Install build dependencies for the module
         run: sudo apt-get install -y libcurl4-openssl-dev