chore(deps): update tkt-actions/add-issue-links action to v1.8.0

Author: renovate[bot]

.github/workflows/autolink-issue.yml

@@ -7,7 +7,7 @@ jobs:
   issue-links:
     runs-on: ubuntu-latest
     steps:
-      - uses: tkt-actions/add-issue-links@v1.6.0
+      - uses: tkt-actions/add-issue-links@v1.8.0
         with:
           repo-token: "${{ secrets.GITHUB_TOKEN }}"
           branch-prefix: "i"