Update Julia version in colab

examples/pysr_demo.ipynb

@@ -48,8 +48,7 @@
         "set -e\n",
         "\n",
         "#---------------------------------------------------#\n",
-        "JULIA_VERSION=\"1.7.2\"\n",
-        "JULIA_NUM_THREADS=4\n",
+        "JULIA_VERSION=\"1.8.5\"\n",
         "export JULIA_PKG_PRECOMPILE_AUTO=0\n",
         "#---------------------------------------------------#\n",
         "\n",
@@ -214,7 +213,6 @@
       "source": [
         "default_pysr_params = dict(\n",
         "    populations=30,\n",
-        "    procs=4,\n",
         "    model_selection=\"best\",\n",
         ")"
       ]
@@ -1376,7 +1374,9 @@
     },
     "gpuClass": "standard",
     "kernelspec": {
-      "language": "python"
+      "display_name": "Python (main_ipynb)",
+      "language": "python",
+      "name": "main_ipynb"
     },
     "language_info": {
       "name": "python",