docs: Move from subprocess.call to subprocess.run (#1410)

docs/python/examples.ipynb

@@ -394,7 +394,7 @@
     "\n",
     "```python\n",
     "import subprocess\n",
-    "subprocess.call([cli_path, toml_path], check=True)\n",
+    "subprocess.run([cli_path, toml_path], check=True)\n",
     "```\n",
     "\n",
     "Windows users should note that if you put the `ribasim_cli` folder in your Path, `cli_path` needs to have the cmd suffix; `ribasim.cmd`.\n",