Add eslint disable on app-compat import

Author: hsubox76

packages/database-compat/src/index.node.ts

@@ -14,6 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
+// eslint-disable-next-line import/no-extraneous-dependencies
 import firebase from '@firebase/app-compat';
 import { FirebaseNamespace } from '@firebase/app-types';
 import { _FirebaseNamespace } from '@firebase/app-types/private';