Update conda package management in CI pipeline

Ensure removal of incompatible packages and install specific versions of `xz` and `libarchive` to improve compatibility.

.gitlab-ci.yml

@@ -52,9 +52,10 @@ update-osx:
   script:
     - source /Users/ci/Miniconda3/etc/profile.d/conda.sh  # source conda activation script
     - conda activate base
+    - conda remove --force libarchive xz  # Remove existing packages
+    - conda install -c default xz=5.2.5 libarchive=3.5.2  # Install specific compatible versions
     - conda update -c default conda
     - conda update -c default conda-build
-    - conda install -c default --force-reinstall xz "libarchive<14.0"
   rules:
     - when: manual
   allow_failure: true  # Avoid blocking the pipeline if not run