feat: add checkout step to issue translation workflow

Author: Aias00

.github/workflows/issue-translation.yml

@@ -27,6 +27,11 @@ jobs:
       issues: write
       id-token: write
     steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+        
       - name: Translate issue body with Claude (auto detect)
         id: translate
         uses: anthropics/claude-code-action@v1