Matrix Python-version removed for mamba-org/provision-with-micromamba@

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

@@ -1,4 +1,4 @@
-name: YAPF Google chromium style
+name: YAPF Google Chromium Style Check
 
 on:
   push:
@@ -13,28 +13,26 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version:
-          - 3.9
-        os:
-          - "ubuntu-latest"
+        python-version: [3.12]
+        os: [ubuntu-latest]
 
     runs-on: "${{ matrix.os }}"
 
-    # use bash everywhere
     defaults:
       run:
         shell: "bash -l {0}"
 
     steps:
       - uses: actions/checkout@v3
-      - uses: mamba-org/provision-with-micromamba@v15
+
+      - name: Set up micromamba
+        uses: mamba-org/provision-with-micromamba@v15
         with:
           environment-name: Zooniverse
           environment-file: dev_environment.yml
-          python-version: "${{ matrix.python-version }}"
           cache-env: true
           cache-downloads: true
 
-      - name: "Run tests"
+      - name: Run YAPF code style check
         run: |
           yapf -d ./*.py --style=.style.yapf 2>&1