Revert pre-commit update workflow to simplified

Author: altheaden

.github/workflows/pre_commit_update_workflow.yml

@@ -21,32 +21,18 @@ jobs:
   auto-update:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v4
 
-      - name: Set up Conda Environment
-        uses: mamba-org/setup-micromamba@v2
+      - name: Set up Python
+        uses: actions/setup-python@v5
         with:
-          environment-name: pre_commit_dev
-          init-shell: bash
-          condarc: |
-            channel_priority: strict
-            channels:
-                - conda-forge
-          create-args: >-
-            python=${{ env.PYTHON_VERSION }}
+          python-version: ${{ env.PYTHON_VERSION }}
 
-      - name: Install pre-commit and gh
-        run: |
-          eval "$(micromamba shell hook --shell bash)"
-          micromamba activate pre_commit_dev
-          # permissions issue with gh 2.76.0
-          conda install -y pre-commit "gh !=2.76.0"
-          gh --version
+      - name: Install pre-commit
+        run: pip install pre-commit
 
       - name: Apply and commit updates
         run: |
-          eval "$(micromamba shell hook --shell bash)"
-          micromamba activate pre_commit_dev
           git clone https://github.com/E3SM-Project/mache.git update-pre-commit-deps
           cd update-pre-commit-deps
           # Configure git using GitHub Actions credentials.
@@ -72,8 +58,6 @@ jobs:
       - name: Make PR and add reviewers and labels
         if: ${{ env.UP_TO_DATE == 'false' }}
         run: |
-          eval "$(micromamba shell hook --shell bash)"
-          micromamba activate pre_commit_dev
           cd update-pre-commit-deps
           gh pr create \
           --title "Update pre-commit and its dependencies" \