Add Pyenv tests to Github Actions

Now that Travis check has been removed from the repo

.github/workflows/pyenv_tests.yml

@@ -0,0 +1,33 @@
+name: pyenv_tests
+on: [pull_request, push]
+jobs:
+  pyenv_tests:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-20.04
+          - ubuntu-18.04
+          - macos-11
+          - macos-10.15
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      # Normally, we would use the superbly maintained...
+      # - uses: actions/setup-python@v2
+      #   with:
+      #    python-version: ${{ matrix.python-version }}
+      # ... but in the repo, we want to test pyenv builds on Ubuntu
+      # - run: |
+          # sudo apt-get install -y build-essential libssl-dev zlib1g-dev libbz2-dev \
+              # libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \
+              # xz-utils tk-dev libffi-dev liblzma-dev python-openssl git
+      # https://github.com/pyenv/pyenv#installation
+      - run: pwd
+      - env:
+          PYENV_ROOT: /home/runner/work/pyenv/pyenv
+        run: |
+          echo $PYENV_ROOT
+          echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
+      - run: |
+          make test