fix(chroma): fix Python 3.14 support in langchain-chroma (#36199)

Latest chromadb version supports Python 3.14 and pydantic 3.12.

Co-authored-by: Mason Daugherty <mason@langchain.dev>

.github/scripts/check_diff.py

@@ -142,11 +142,8 @@ def _get_configs_for_single_dir(job: str, dir_: str) -> List[Dict[str, str]]:
                 "codspeed-mode": mode,
             }
         ]
-    elif dir_ == "libs/core":
+    if dir_ == "libs/core":
         py_versions = ["3.10", "3.11", "3.12", "3.13", "3.14"]
-    # custom logic for specific directories
-    elif dir_ in {"libs/partners/chroma"}:
-        py_versions = ["3.10", "3.13"]
     else:
         py_versions = ["3.10", "3.14"]