fix ci config

.github/workflows/ci.yml

@@ -11,8 +11,15 @@ jobs:
     name: Check CI
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - name: Install apt dependencies
+        run: |
+          set -ex
+          sudo apt update
+          sudo apt install -y libkrb5-dev libsasl2-dev libldap2-dev
+      - uses: actions/setup-python@v4
         with:
           python-version-file: '.python-version'
-      - run: poetry install --with dev
+      - run: |
+          pip install poetry==1.5.1
+          poetry install --with dev
       - run: ./ci.sh