Update and reduce size multi_mmm.nc (#1854)

* reduce size

* dummy change to triger ci

Author: juanitorduz

docs/source/notebooks/mmm/mmm_multidimensional_example.ipynb

@@ -5249,30 +5249,33 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 38,
+   "execution_count": 124,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "Last updated: Thu Jul 24 2025\n",
+      "The watermark extension is already loaded. To reload it, use:\n",
+      "  %reload_ext watermark\n",
+      "Last updated: Sat Jul 26 2025\n",
       "\n",
       "Python implementation: CPython\n",
-      "Python version       : 3.10.18\n",
-      "IPython version      : 8.37.0\n",
+      "Python version       : 3.12.11\n",
+      "IPython version      : 9.3.0\n",
       "\n",
       "pymc_marketing: 0.15.1\n",
       "pytensor      : 2.31.7\n",
-      "nutpie        : 0.15.1\n",
+      "nutpie        : not installed\n",
       "\n",
-      "matplotlib    : 3.10.3\n",
-      "arviz         : 0.22.0\n",
-      "seaborn       : 0.13.2\n",
-      "numpy         : 1.26.4\n",
-      "pymc          : 5.23.0\n",
-      "pandas        : 2.3.1\n",
       "pymc_marketing: 0.15.1\n",
+      "seaborn       : 0.13.2\n",
+      "pandas        : 2.3.0\n",
+      "pymc_extras   : 0.4.0\n",
+      "matplotlib    : 3.10.3\n",
+      "arviz         : 0.21.0\n",
+      "numpy         : 2.2.6\n",
+      "pymc          : 5.25.1\n",
       "\n",
       "Watermark: 2.5.0\n",
       "\n"