docs:fixed typo in streaming document (langchain-ai#19045)

Fixed typo in line 661 - from 'mimimize' to 'minimize

- [ ] **PR message**: 
- **Description:** Fixed typo in streaming document - change 'mimimize'
to 'minimize

If no one reviews your PR within a few days, please @-mention one of
baskaryan, efriis, eyurtsev, hwchase17.

docs/docs/expression_language/streaming.ipynb

@@ -658,7 +658,7 @@
     "\n",
     "This is a **beta API**, and we're almost certainly going to make some changes to it.\n",
     "\n",
-    "This version parameter will allow us to mimimize such breaking changes to your code. \n",
+    "This version parameter will allow us to minimize such breaking changes to your code. \n",
     "\n",
     "In short, we are annoying you now, so we don't have to annoy you later.\n",
     ":::"