Add Minimum Requirements Test (#704)

Author: blink1073

.github/workflows/python-linux.yml

@@ -72,6 +72,21 @@ jobs:
           pip install -r doc-requirements.txt
           make html SPHINXOPTS="-W"
 
+  test_miniumum_verisons:
+    name: Test Minimum Versions
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.7"]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - name: Install miniumum versions
+        uses: jupyterlab/maintainer-tools/.github/actions/install-minimums@v1
+      - name: Run the unit tests
+        run: pytest -vv
+
   make_sdist:
     name: Make SDist
     runs-on: ubuntu-latest