CI: fail on lint issues

Author: missytake

.github/workflows/test-and-deploy-ipv4only.yaml

@@ -71,7 +71,7 @@ jobs:
           ssh -o StrictHostKeyChecking=accept-new -v [email protected] chown root:root -R /var/lib/acme || true
 
       - name: run formatting checks 
-        run: cmdeploy fmt -v 
+        run: cmdeploy fmt -v --check
 
       - name: run deploy-chatmail offline tests 
         run: pytest --pyargs cmdeploy 

.github/workflows/test-and-deploy.yaml

@@ -71,7 +71,7 @@ jobs:
           ssh -o StrictHostKeyChecking=accept-new -v [email protected] chown root:root -R /var/lib/acme || true
 
       - name: run formatting checks 
-        run: cmdeploy fmt -v 
+        run: cmdeploy fmt -v --check
 
       - name: run deploy-chatmail offline tests 
         run: pytest --pyargs cmdeploy