linter happyness

Signed-off-by: Tobias Guggenmos <guggenmos@dfn-cert.de>

Author: slrtbtfs

.github/workflows/stale.yml

@@ -28,4 +28,4 @@ jobs:
           # override days-before-stale, for only marking the pull requests as stale
           days-before-pr-stale: 60
           stale-pr-label: stale
-          exempt-pr-labels: keepalive
+          exempt-pr-labels: keepalive