chore(deps-dev): bump @electron-forge/plugin-webpack

Bumps [@electron-forge/plugin-webpack](https://github.com/electron-userland/electron-forge) from 6.0.0-beta.54 to 6.0.0-beta.57.
- [Release notes](https://github.com/electron-userland/electron-forge/releases)
- [Changelog](https://github.com/electron-userland/electron-forge/blob/master/CHANGELOG.md)
- [Commits](electron/forge@v6.0.0-beta.54...v6.0.0-beta.57)

---
updated-dependencies:
- dependency-name: "@electron-forge/plugin-webpack"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -37,7 +37,7 @@
   "devDependencies": {
     "@electron-forge/cli": "6.0.0-beta.57",
     "@electron-forge/maker-zip": "6.0.0-beta.57",
-    "@electron-forge/plugin-webpack": "6.0.0-beta.54",
+    "@electron-forge/plugin-webpack": "6.0.0-beta.57",
     "@electron-forge/publisher-github": "6.0.0-beta.57",
     "@marshallofsound/webpack-asset-relocator-loader": "0.5.0",
     "@tsconfig/svelte": "2.0.1",