Use RC of cffi so that build works

Once cffi 1.17 is out this commit can be reverted.
It it done first to get around issues with pip's dependency resolver

.github/workflows/gate.yaml

@@ -152,6 +152,8 @@ jobs:
           run: dnf install -y cmake make openscap-utils bats ansible python3-pip ShellCheck git python3-devel gcc-c++ libxml2-devel libxslt-devel libffi-devel
       -   name: Checkout
           uses: actions/checkout@v4
+      -   name: Install deps python, part 1
+          run: pip install "cffi>=1.17.0rc1"
       -   name: Install deps python
           run: pip install -r requirements-base.txt -r test-requirements.txt
       -   name: Build