fix: syntax of multiple vault IDs in Gitlab-CI config

.gitlab-ci.yml

@@ -21,7 +21,7 @@ test-job:
     # make sure that Ansible Vaults are present and can be decrypted
     - echo "${VAULT_REPORTING}" > ../lza_reporting.pass
     - echo "${VAULT_INSTALL_COMMON}" > ../lza_install_common.pass
-    - export ANSIBLE_VAULT_IDENTITY_LIST="../lza_reporting.pass, ../lza_install_common.pass"
+    - export ANSIBLE_VAULT_IDENTITY_LIST="../lza_reporting.pass ../lza_install_common.pass"
     - rm -rf ../ansible_vaults/
     - git clone https://gitlab+deploy-token-25:${VAULT_ACCESS_TOKEN}@git.slub-dresden.de/slub-referat-2-3/ansible_vaults.git ../ansible_vaults/; \
     # run Molecule tests