Bump @rollup/plugin-commonjs in /templates/svelte-basic

Bumps [@rollup/plugin-commonjs](https://github.com/rollup/plugins/tree/HEAD/packages/commonjs) from 26.0.3 to 28.0.0.
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/commonjs/CHANGELOG.md)
- [Commits](https://github.com/rollup/plugins/commits/commonjs-v28.0.0/packages/commonjs)

---
updated-dependencies:
- dependency-name: "@rollup/plugin-commonjs"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

templates/svelte-basic/package.json

@@ -9,7 +9,7 @@
     "start": "sirv dist --no-clear"
   },
   "devDependencies": {
-    "@rollup/plugin-commonjs": "^26.0.1",
+    "@rollup/plugin-commonjs": "^28.0.0",
     "@rollup/plugin-node-resolve": "^15.0.0",
     "@rollup/plugin-terser": "^0.4.4",
     "rollup": "^4.20.0",