DOC: Replace custom setup-conda with Miniconda to avoid micromamba spawn errors on macOS

Author: sanchit122006

.github/actions/setup-conda/action.yml

@@ -11,16 +11,15 @@ runs:
     - name: Install ${{ inputs.environment-file }}
       uses: mamba-org/setup-micromamba@v2
       with:
-        micromamba-url: https://github.com/mamba-org/micromamba-releases/releases/latest/download/micromamba-linux-64
         environment-file: ${{ inputs.environment-file }}
         environment-name: test
         condarc-file: ci/.condarc
         cache-environment: true
         cache-downloads: true
-        # avoid aggressive post-cleanup that can trigger JSON issues
-        post-cleanup: none
+        # keep post step simple to avoid JSON parsing problems
+        post-cleanup: environment
 
-    - name: Uninstall pyarrow
+    - name: Uninstall pyarrow (optional)
       if: ${{ env.REMOVE_PYARROW == '1' }}
       shell: bash -el {0}
       run: |

.github/workflows/unit-tests.yml

@@ -202,10 +202,15 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Set up Conda
-        uses: ./.github/actions/setup-conda
+      # Replaced custom setup-conda (micromamba) with setup-miniconda to avoid micromamba spawn errors on macOS
+      - name: Set up Miniconda (avoid micromamba)
+        uses: conda-incubator/setup-miniconda@v3
         with:
+          auto-update-conda: true
+          use-mamba: false
           environment-file: ci/deps/${{ matrix.env_file }}
+          environment-name: pandas-ci
+          activate-environment: pandas-ci
 
       - name: Build Pandas
         uses: ./.github/actions/build_pandas
@@ -304,7 +309,7 @@ jobs:
     #    To unfreeze, comment out the ``if: false`` condition, and make sure you update
     #    the name of the workflow and Python version in actions/setup-python ``python-version:``
     #
-    # After it has been unfrozen, this file should remain unfrozen(present, and running) until:
+    # After it has been unfrozen, this file should remain unfrozen(present and running) until:
     #    - The next Python version has been officially released.
     #    OR
     #    - Most/All of our optional dependencies support the next Python version AND
@@ -418,4 +423,4 @@ jobs:
           pip install pytest hypothesis
           # do not import pandas from the checked out repo
           cd ..
-          python -c 'import pandas as pd; pd.test(extra_args=["-m not clipboard and not single_cpu and not slow and not network and not db"])'
+          python -c 'import pandas as pd; pd.test(extra_args=["-m not clipboard and not single_cpu and not slow and not network and not db"])'