CI fix unit tests (#51)

CI ensure tox-gh-actions runs only the os/py combination provided by GHA

.github/workflows/unit_tests.yml

@@ -77,15 +77,15 @@ jobs:
 
       - name: Install Zipline
         run: |
-          set -xe
           python -VV
-          python -m site
-          pip install -U pip setuptools wheel tox tox-gh-actions
+          python -m pip install --upgrade pip
+          pip install tox tox-gh-actions
           pip install -e .[test]
-        shell: bash
 
       - name: Lint with flake8
-        run: "python -m flake8"
+        run: |
+          flake8
 
       - name: Unittests with tox & pytest
-        run: "python -m tox"
+        run: |
+          tox

.gitignore

@@ -90,6 +90,6 @@ revision
 condag
 archive
 
-conda/ta-lib
-conda/logbook
+conda
 .pytest_cache
+admin

tox.ini

@@ -2,11 +2,13 @@
 envlist = py{37,38,39}-pandas{11,12}
 isolated_build = True
 skip_missing_interpreters = True
+minversion = 3.23.0
 requires = setuptools >=42.0.0
            pip >=21.0
            wheel >0.36.0
            Cython >0.29.21,<3
            numpy
+           tox-gh-actions
 
 [gh-actions]
 python =