fix: remove token from actions/checkout step in feelpp-env.yml for security

Author: prudhomm

.github/workflows/feelpp-env.yml

@@ -69,7 +69,6 @@ jobs:
     steps:
     - uses: actions/checkout@v5
       with:
-        token: ${{ secrets.CR_PAT }}
         submodules: recursive
     - name: Setup Python factory
       run: |