refactor: Update Github icon

Author: gericdong

notebooks/community/weathernext/weathernext_2_early_access_program.ipynb

@@ -46,7 +46,7 @@
         "  </td>\n",
         "  <td style=\"text-align: center\">\n",
         "    <a href=\"https://github.com/GoogleCloudPlatform/vertex-ai-samples/blob/main/notebooks/community/weathernext/weathernext_2_early_access_program.ipynb\">\n",
-        "      <img width=\"32px\"src=\"https://www.svgrepo.com/download/217753/github.svg\" alt=\"GitHub logo\"><br> View on GitHub\n",
+        "      <img width=\"32px\"src=\"https://raw.githubusercontent.com/primer/octicons/refs/heads/main/icons/mark-github-24.svg\" alt=\"GitHub logo\"><br> View on GitHub\n",
         "    </a>\n",
         "  </td>\n",
         "</table>"