Update pyproject.toml

Author: vsoftco

pyproject.toml

@@ -1,6 +1,5 @@
 [build-system]
 requires = [
-    "pybind11>=2.10.0",
     "setuptools>=42",
     "wheel",
 ]
@@ -15,7 +14,9 @@ authors = [
 ]
 readme = "README.md"
 license = { file = "LICENSE.txt" }
-dependencies = []
+dependencies = [
+    "nose2",
+]
 
 [project.urls]
 homepage = "https://github.com/open-quantum-safe/liboqs-python"