Add exempt-all-milestones option to workflow (#1799)

Author: RohitKushvaha01

.github/workflows/close-inactive-issues.yml

@@ -22,6 +22,7 @@ jobs:
 
             Thanks for your help!
           close-issue-message: "This issue was closed because it has been inactive for 14 days since being marked as stale."
+          exempt-all-milestones: true
           days-before-pr-stale: -1
           days-before-pr-close: -1
           exempt-issue-labels: "new plugin idea, todo, enhancement, bug, Low priority, documentation"