Update GH action

Author: HarlemSquirrel

.github/workflows/test.yml

@@ -27,6 +27,12 @@ jobs:
         ports:
           - 389:389
           - 636:636
+        options: >-
+          --health-cmd "ldapwhoami -x"
+          --health-interval 10s
+          --health-start-period 60s
+          --health-timeout 10s
+          --health-retries 6
     strategy:
       matrix:
         ruby:
@@ -59,6 +65,9 @@ jobs:
     - name: Set up /etc/hosts
       run: |
         echo '127.0.0.1 ldap.example.org' | sudo tee -a /etc/hosts
+        sudo apt-get install -y ldap-utils
+        ldapsearch -x -H ldap://localhost:389 -b '' -s base namingContexts || \
+        ldapsearch -x -H ldap://ldap.example.org:389 -b '' -s base namingContexts
     - name: Install dependencies
       run: pwd; bundle install
     - name: Run tests