Fix Windows conda: set activate-environment='' in setup-miniconda to prevent conda activate test failure

Author: mdouze

.github/actions/build_conda/action.yml

@@ -33,6 +33,7 @@ runs:
         miniforge-version: latest # ensures conda-forge channel is used.
         channels: conda-forge
         conda-remove-defaults: 'true'
+        activate-environment: ''
         # Set to runner.arch=aarch64 if we're on arm64 because
         # there's no miniforge ARM64 package, just aarch64.
         # They are the same thing, just named differently.
@@ -59,37 +60,21 @@ runs:
       shell: ${{ steps.choose_shell.outputs.shell }}
       run: nvidia-smi
     - name: Conda build (CPU)
-      if: inputs.label == '' && inputs.cuda == '' && runner.os != 'Windows'
+      if: inputs.label == '' && inputs.cuda == ''
       shell: ${{ steps.choose_shell.outputs.shell }}
       working-directory: conda
       run: |
         conda list --show-channel-urls
         conda build faiss --python 3.12 -c pytorch
-    - name: Conda build (CPU, Windows)
-      if: inputs.label == '' && inputs.cuda == '' && runner.os == 'Windows'
-      shell: ${{ steps.choose_shell.outputs.shell }}
-      working-directory: conda
-      run: |
-        conda list --show-channel-urls
-        conda build faiss --python 3.12 -c pytorch --no-test
     - name: Conda build (CPU) w/ anaconda upload
-      if: inputs.label != '' && inputs.cuda == '' && runner.os != 'Windows'
+      if: inputs.label != '' && inputs.cuda == ''
       shell: ${{ steps.choose_shell.outputs.shell }}
       working-directory: conda
       env:
         PACKAGE_TYPE: ${{ inputs.label }}
       run: |
         conda list --show-channel-urls
         conda build faiss --python 3.12 --user pytorch --label ${{ inputs.label }} -c pytorch
-    - name: Conda build (CPU) w/ anaconda upload (Windows)
-      if: inputs.label != '' && inputs.cuda == '' && runner.os == 'Windows'
-      shell: ${{ steps.choose_shell.outputs.shell }}
-      working-directory: conda
-      env:
-        PACKAGE_TYPE: ${{ inputs.label }}
-      run: |
-        conda list --show-channel-urls
-        conda build faiss --python 3.12 --user pytorch --label ${{ inputs.label }} -c pytorch --no-test
     - name: Conda build (GPU)
       if: inputs.label == '' && inputs.cuda != '' && inputs.cuvs == ''
       shell: ${{ steps.choose_shell.outputs.shell }}