ci(issues): added the issues auto-labeling pipeline

Signed-off-by: k4yt3x <i@k4yt3x.com>

Author: k4yt3x

.github/workflows/issues.yml

@@ -0,0 +1,26 @@
+name: Issues
+
+on:
+  issues:
+    types:
+      - opened
+      - reopened
+      - closed
+
+jobs:
+  label_issues:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Add 'state:Backlog' label on issue opened or reopened
+        if: ${{ github.event.action == 'opened' || github.event.action == 'reopened' }}
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          labels: state:Backlog
+
+      - name: Add 'state:Done' label on issue closed
+        if: ${{ github.event.action == 'closed' }}
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          labels: state:Done