ci: disable libyang devel check

As libyang 3.x is under development, the devel branch is currently not
compatible with the master.

Let's disable this check for the meantime until we revert back to a more
stable state.

Signed-off-by: Robin Jarry <robin@jarry.cc>

Author: rjarry

.github/workflows/ci.yml

@@ -70,22 +70,6 @@ jobs:
       - run: python -m pip install --upgrade tox
       - run: python -m tox -e ${{ matrix.toxenv }}
 
-  libyang_devel:
-    runs-on: ubuntu-20.04
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
-        with:
-          python-version: 3.x
-      - uses: actions/cache@v3
-        with:
-          path: ~/.cache/pip
-          key: pip
-          restore-keys: pip
-      - run: python -m pip install --upgrade pip setuptools wheel
-      - run: python -m pip install --upgrade tox
-      - run: python -m tox -e lydevel
-
   coverage:
     runs-on: ubuntu-latest
     steps: