Unpin pydantic (#28728)

* try pydantic v2

* try pydantic v2

---------
Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

setup.py

@@ -144,7 +144,7 @@ _deps = [
     "protobuf",
     "psutil",
     "pyyaml>=5.1",
-    "pydantic<2",
+    "pydantic",
     "pytest>=7.2.0",
     "pytest-timeout",
     "pytest-xdist",

src/transformers/dependency_versions_table.py

@@ -50,7 +50,7 @@ deps = {
     "protobuf": "protobuf",
     "psutil": "psutil",
     "pyyaml": "pyyaml>=5.1",
-    "pydantic": "pydantic<2",
+    "pydantic": "pydantic",
     "pytest": "pytest>=7.2.0",
     "pytest-timeout": "pytest-timeout",
     "pytest-xdist": "pytest-xdist",