infra: add SQLAlchemy to min version testing (#23186)

preventing issues like #22546 

Notes:
- this will only affect release CI. We may want to consider adding
running unit tests with min versions to PR CI in some form
- because this only affects release CI, it could create annoying issues
releasing while I'm on vacation. Unless anyone feels strongly, I'll wait
to merge this til when I'm back

.github/scripts/get_min_versions.py

@@ -9,6 +9,7 @@ MIN_VERSION_LIBS = [
     "langchain-community",
     "langchain",
     "langchain-text-splitters",
+    "SQLAlchemy",
 ]