fix: kerberos package install sometime fails in CI

Signed-off-by: Yftach Herzog <yherzog@redhat.com>

Author: yftacherzog

.github/workflows/test.yml

@@ -17,7 +17,9 @@ jobs:
       - name: Install pipenv
         run: pip install pipenv==2023.7.23
       - name: install packages
-        run: sudo apt-get install -y libkrb5-dev
+        run: |
+          apt-get update
+          sudo apt-get install -y libkrb5-dev
       - name: Create virtualenv
         run: pipenv sync
       - name: Run tests