Fix test for tags

lib/gitlab/ci/templates/Jobs/Secret-Detection.gitlab-ci.yml

@@ -27,8 +27,8 @@ secret_detection:
       when: never
     - if: $CI_COMMIT_BRANCH
   script:
-    - if [[ $CI_COMMIT_TAG ]]; then echo "Skipping Secret Detection for tags. No code changes have occurred."; exit 0; fi
-    - if [[ $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH ]]; then echo "Running Secret Detection on default branch."; /analyzer run; exit 0; fi
+    - if [ -n "$CI_COMMIT_TAG" ]; then echo "Skipping Secret Detection for tags. No code changes have occurred."; exit 0; fi
+    - if [ "$CI_COMMIT_BRANCH" = "$CI_DEFAULT_BRANCH" ]; then echo "Running Secret Detection on default branch."; /analyzer run; exit 0; fi
     - git fetch origin $CI_DEFAULT_BRANCH $CI_COMMIT_REF_NAME
     - git log --left-right --cherry-pick --pretty=format:"%H" refs/remotes/origin/$CI_DEFAULT_BRANCH...refs/remotes/origin/$CI_COMMIT_REF_NAME > "$CI_COMMIT_SHA"_commit_list.txt
     - export SECRET_DETECTION_COMMITS_FILE="$CI_COMMIT_SHA"_commit_list.txt