chore: 更新 .gitignore 文件

- 删除 sandbox-test-entitlements.plist 文件
- 添加 test-tauri-sign.sh 文件到 .gitignore

Author: allentown521

.gitignore

@@ -30,4 +30,5 @@ entitlements.plist
 ocr-entitlements.plist
 build-mac-arm-sandbox-test.sh
 test-notarization.sh
-sandbox-test-entitlements.plist
+sandbox-test-entitlements.plist
+test-tauri-sign.sh