CI: Debug slow environment solve times

Author: mroeschke

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

@@ -14,6 +14,8 @@ runs:
         condarc-file: ci/.condarc
         cache-environment: true
         cache-downloads: true
+        log-level: debug
+        create-args: --strict-channel-priority
 
     - name: Uninstall pyarrow
       if: ${{ env.REMOVE_PYARROW == '1' }}