fix: unassign workflow (#2574)

Co-authored-by: Thomas Poignant <thomas.poignant@gofeatureflag.org>

Author: hoangnv-bkhn

.github/workflows/unassign-issue.yml

@@ -85,7 +85,7 @@ jobs:
           days-before-close: -1 # Don't close stale issues
           exempt-issue-labels: ${{ env.PINNED_LABEL }}
           remove-stale-when-updated: false
-          only-labels: ${{ env.ASSIGNED_LABEL }}
+          include-only-assigned: true
 
       - name: Unassign stale issues and remove labels
         uses: actions/github-script@v7
@@ -107,8 +107,7 @@ jobs:
             const staleIssues = await github.paginate(github.rest.issues.listForRepo, {
               owner, repo,
               state: 'open',
-              labels: staleLabel,
-              assignee: '*'
+              labels: staleLabel
             });
               
             for (const issue of staleIssues) {