build(deps): bump tar and electron-builder

Bumps [tar](https://github.com/isaacs/node-tar) to 7.5.7 and updates ancestor dependency [electron-builder](https://github.com/electron-userland/electron-builder/tree/HEAD/packages/electron-builder). These dependencies need to be updated together.


Updates `tar` from 6.2.1 to 7.5.7
- [Release notes](https://github.com/isaacs/node-tar/releases)
- [Changelog](https://github.com/isaacs/node-tar/blob/main/CHANGELOG.md)
- [Commits](https://github.com/isaacs/node-tar/compare/v6.2.1...v7.5.7)

Updates `electron-builder` from 26.0.12 to 26.6.0
- [Release notes](https://github.com/electron-userland/electron-builder/releases)
- [Changelog](https://github.com/electron-userland/electron-builder/blob/master/packages/electron-builder/CHANGELOG.md)
- [Commits](https://github.com/electron-userland/electron-builder/commits/electron-builder@26.6.0/packages/electron-builder)

---
updated-dependencies:
- dependency-name: tar
  dependency-version: 7.5.7
  dependency-type: indirect
- dependency-name: electron-builder
  dependency-version: 26.6.0
  dependency-type: direct:development
...

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

package.json

@@ -39,7 +39,7 @@
   },
   "devDependencies": {
     "electron": "^38.2.0",
-    "electron-builder": "^26.0.12"
+    "electron-builder": "^26.6.0"
   },
   "author": {
     "name": "Toinane",