Relax version constraint on docstring_parser

Author: tcompa

pyproject.toml

@@ -31,7 +31,7 @@ numpy = "<=2.1.0"
 pandas = ">=1.2.0"
 lxml = "^4.9.1"
 pydantic = ">2,<=2.8.2"
-docstring-parser = "^0.15"
+docstring-parser = ">=0.15.0,<=0.16.0"
 anndata = ">=0.8.0,<0.11.0"
 filelock = "3.13.*"
 ngio = ">=0.1.5,<0.2.0"