chore(deps): update electron-builder to v26

Author: renovate[bot]

package.json

@@ -101,7 +101,7 @@
     "css-minimizer-webpack-plugin": "7.0.2",
     "date-fns": "4.1.0",
     "electron": "37.2.6",
-    "electron-builder": "25.1.8",
+    "electron-builder": "26.0.12",
     "final-form": "5.0.0",
     "graphql-tag": "2.12.6",
     "html-webpack-plugin": "5.6.3",