ci: substitui comment-commands.yml por autoassign-issue-v1.yml`

O arquivo comment-commands.yml foi removido e substituído pelo workflow compartilhado autoassign-issue-v1.yml do repositório cumbucadev/shared-workflows. Essa mudança mantém o mesmo comportamento de autoatribuição de issues via comentário.

Author: camilamaia

.github/workflows/autoassign-issue-v1.yml

@@ -0,0 +1,16 @@
+name: Autoassign issue
+
+on:
+  issue_comment:
+    types:
+      - created
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
+jobs:
+  issue_assign:
+    name: "Call `Autoassign issue` shared workflow"
+    uses: cumbucadev/shared-workflows/.github/workflows/autoassign-issue-v1.yml@main