Attempt the use of the correct conda env

.github/workflows/test_notebook.yml

@@ -15,27 +15,26 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.8"]
 
     steps:
     - name: Install pdflatex
       run: |
         sudo apt-get update
         sudo apt-get install texlive-latex-base pdftk latex2html
     - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: conda-incubator/setup-miniconda@v2
+    - uses: conda-incubator/setup-miniconda@v2
       with:
           python-version: ${{ matrix.python-version }}
           mamba-version: "*"
           channels: conda-forge,defaults
           channel-priority: true
     - name: Install Dependencies & Main Code
       run: |
-        python -m pip install --upgrade pip
-        python -m pip install pytest
+        pip install --upgrade pip
+        pip install pytest
         mamba install -c conda-forge python=${{ matrix.python-version }} cython=0.29.36 tempo2 scikit-sparse
-        python -m pip install -e .
+        pip install -e .
     - name: Test with Standard Pulsar
       run: |
         export PULSAR_NAME='J0605+3757'