fix: add compatibility with last NumPy version

This should be the last time we have to do this, since NumPy finally released the Python constraint

pyproject.toml

@@ -24,7 +24,8 @@ skyfield = "^1.49"
 numpy = [
     { version = "<1.25", python = "3.8.*" },
     { version = "<2.1", python = "3.9.*" },
-    { version = "^2.1", python = "^3.10" },
+    { version = "<2.3", python = "3.10.*" },
+    { version = "^2.3", python = ">=3.11" },
 ]
 skyfield-data = "*"
 python-dateutil = "^2.8"