can lint on all branches

.gitlab-ci.yml

@@ -185,9 +185,7 @@ lint:
   script:
     - cd content/3.defense-systems
     - find . -name '*.md' ! -name '0.index.md' -print0 | xargs -0 -I {} df-wiki-cli content lint --file {}
-  when: manual      
-  rules: 
-    - if: $CI_COMMIT_BRANCH != "main"
+  when: manual
 
 # Update Meili search indexes