add pip install

.github/workflows/python-package-conda.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build-linux:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       max-parallel: 5
 
@@ -22,15 +22,13 @@ jobs:
       run: |
         # $CONDA is an environment variable pointing to the root of the miniconda directory
         echo $CONDA/bin >> $GITHUB_PATH
-    - name: Install dependencies
+    - name: Install packages and test with pytest
       run: |
-        conda env update --file environment.yml --name base
-    - name: Test with pytest
-      run: |
-        conda update conda -y -q
         conda config --add channels conda-forge
         conda update conda -y -q
-        conda install scikit-learn=1.0.2 pandas=1.3.5  -y -q
+        conda env update --file environment.yml --name base
+        pip install scikit-learn==1.0.2 
+        pip install pandas==1.3.5
         conda install tensorflow joblib pytest -y -q
         conda install imageio scikit-image -y -q
         conda install dlib -y -q