ci: install Tarantool 2.10 with GitHub Actions

After update [1] and Tarantool 2.10 release it is possible to install it
with setup-tarantool tools. This patch uses setup-tarantool to install
release Tarantool 2.10 instead of pre-release one.

1. tarantool/setup-tarantool@6c88e71

Author: DifferentialOrange

.github/workflows/testing.yml

@@ -25,7 +25,7 @@ jobs:
         tarantool:
           - '1.10'
           - '2.8'
-          - '2.x-latest'
+          - '2.10'
         python:
           - '3.6'
           - '3.7'
@@ -59,17 +59,10 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Install tarantool ${{ matrix.tarantool }}
-        if: matrix.tarantool != '2.x-latest'
         uses: tarantool/setup-tarantool@v1
         with:
           tarantool-version: ${{ matrix.tarantool }}
 
-      - name: Install latest tarantool 2.x
-        if: matrix.tarantool == '2.x-latest'
-        run: |
-          curl -L https://tarantool.io/pre-release/2/installer.sh | sudo bash
-          sudo apt install -y tarantool tarantool-dev
-
       - name: Setup Python for tests
         uses: actions/setup-python@v2
         with:
@@ -173,6 +166,7 @@ jobs:
         tarantool:
           - '1.10'
           - '2.8'
+          - '2.10.0.g0a5ce0b9c-1'
         python:
           - '3.10'
 
@@ -196,12 +190,20 @@ jobs:
         with:
           distribution: Ubuntu-20.04
 
-      - name: Install tarantool ${{ matrix.tarantool }} for WSL
+      - name: Install tarantool ${{ matrix.tarantool }} for WSL (2.8 and older)
+        if: (matrix.tarantool == '1.10') || (matrix.tarantool == '2.8')
         shell: wsl-bash_Ubuntu-20.04 {0}
         run: |
           curl -L https://tarantool.io/installer.sh | VER=${{ matrix.tarantool }} bash -s -- --type "release"
           sudo apt install -y tarantool tarantool-dev
 
+      - name: Install tarantool ${{ matrix.tarantool }} for WSL (2.10 and newer)
+        if: (matrix.tarantool != '1.10') && (matrix.tarantool != '2.8')
+        shell: wsl-bash_Ubuntu-20.04 {0}
+        run: |
+          curl -L https://tarantool.io/release/2/installer.sh | bash -s
+          sudo apt install -y tarantool=${{ matrix.tarantool }} tarantool-dev=${{ matrix.tarantool }}
+
       - name: Setup test tarantool instance
         shell: wsl-bash_Ubuntu-20.04 {0}
         run: |