cleanup-self-hosted-runner: fix some white-space issue

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

.github/workflows/cleanup-self-hosted-runners.yml

@@ -50,7 +50,7 @@ jobs:
               vm_creation_time_string="$(echo $active_vm |
                   jq -r '.timeCreated | sub("\\.[0-9]+[+-][0-9]+:[0-9]+$"; "") | sub("T"; " ")')"
               vm_creation_time=$(TZ=UTC date -d "$vm_creation_time_string" +%s)
-              
+
               if [ "$one_hour_ago" -lt "$vm_creation_time" ]; then
                   echo "The VM ${vm_name} was created less then 1 hour ago and shouldn't be deleted yet. Skipping."
               elif test true = "$(if test ! -f .cli-authenticated; then