Update dependency marshmallow to v4

Author: elastic-renovate-prod[bot]

pyproject.toml

@@ -28,7 +28,7 @@ dependencies = [
   "marshmallow-dataclass==8.7.1",
   "marshmallow-jsonschema~=0.13.0",
   "marshmallow-union~=0.1.15",
-  "marshmallow~=3.26.1",
+  "marshmallow~=4.1.0",
   "pywin32 ; platform_system=='Windows'",
   # FIXME: pytoml is outdated and should not be used
   "pytoml==0.1.21",