Update helm/chart-testing-action action to v2.8.0

.gitea/workflows/lint-test.yaml

@@ -42,7 +42,7 @@ jobs:
           python-version: '3.14'
 
       - name: Set up Chart Testing
-        uses: helm/chart-testing-action@v2.7.0
+        uses: helm/chart-testing-action@v2.8.0
         with:
           yamale_version: "6.0.0"
 
@@ -129,6 +129,7 @@ jobs:
 
             for path in $GIT_DIFF; do
               CHANGED_CHARTS+=$(echo "$path" | awk -F '/' '{print $2}')
+              RENDER_DIR+=$(echo " ")
             done
 
           else
@@ -140,13 +141,13 @@ jobs:
           if [ -n "${CHANGED_CHARTS}" ]; then
             echo ""
             echo ">> Chart to Lint:"
-            echo "$(echo "${CHANGED_CHARTS[@]}" | sort -u)"
+            echo "$(echo "${CHANGED_CHARTS}" | sort -u)"
 
             echo "----"
 
             echo "changes-detected=true" >> $GITEA_OUTPUT
             echo "chart-dir<<EOF" >> $GITEA_OUTPUT
-            echo "$(echo "${CHANGED_CHARTS[@]}" | sort -u)" >> $GITEA_OUTPUT
+            echo "$(echo "${CHANGED_CHARTS}" | sort -u)" >> $GITEA_OUTPUT
             echo "EOF" >> $GITEA_OUTPUT
           else
             echo "changes-detected=false" >> $GITEA_OUTPUT