fix workflow

.gitea/workflows/lint-test-docker.yaml

@@ -73,7 +73,7 @@ jobs:
 
             for path in $GIT_DIFF; do
               CHANGED_COMPOSE+=$(echo "$path")
-              RENDER_DIR+=$(echo " ")
+              CHANGED_COMPOSE+=$(echo " ")
             done
 
           else
@@ -105,7 +105,7 @@ jobs:
           echo ">> Running dclint on changed compose files:"
           echo "$CHANGED_COMPOSE"
 
-          echo "$CHANGED_COMPOSE" | while read -r compose; do
+          for compose in $CHANGED_COMPOSE; do
             echo ">> Linting $compose ..."
             npx dclint $compose
           done