[ci] Launch CI on 4 latest python versions

.github/workflows/ci.yml

@@ -24,9 +24,6 @@ jobs:
 
     # The type of runner that the job will run on
     runs-on: ubuntu-20.04
-    env:
-      PYENV_ROOT: "$HOME/.pyenv"
-      PATH: "$PYENV_ROOT/bin:$PATH"
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
@@ -41,8 +38,8 @@ jobs:
             libbz2-dev libreadline-dev libsqlite3-dev curl git \
             libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev
           curl https://pyenv.run | bash
-          # export PYENV_ROOT="$HOME/.pyenv"
-          # [[ -d $PYENV_ROOT/bin ]] && export PATH="$PYENV_ROOT/bin:$PATH"
+          export PYENV_ROOT="$HOME/.pyenv"
+          [[ -d $PYENV_ROOT/bin ]] && export PATH="$PYENV_ROOT/bin:$PATH"
           eval "$(pyenv init -)"
           pyenv install ${{ matrix.python_version }}
           pyenv global ${{ matrix.python_version }}
@@ -52,6 +49,8 @@ jobs:
 
       - name: Start services
         run: |
+          export PYENV_ROOT="$HOME/.pyenv"
+          [[ -d $PYENV_ROOT/bin ]] && export PATH="$PYENV_ROOT/bin:$PATH"
           sudo systemctl start mongod
           sudo systemctl start docker
           coverage --version