[skip changelog] Fix Jira grooming workflow label addition

Author: silvanocerza

.github/workflows/jira-issue.yaml

@@ -38,8 +38,8 @@ jobs:
 
       - name: Set label on Jira issue
         run: |
-          jira labels add
-          $(cat output | awk '{split($0,a," "); print a[2]}')
+          jira labels add \
+          $(cat output | awk '{split($0,a," "); print a[2]}') \
           grooming arduino-cli
 
       - name: Set label on Github issue