Bump serialize-javascript and @rollup/plugin-terser

Bumps [serialize-javascript](https://github.com/yahoo/serialize-javascript) to 7.0.4 and updates ancestor dependency [@rollup/plugin-terser](https://github.com/rollup/plugins/tree/HEAD/packages/terser). These dependencies need to be updated together.


Updates `serialize-javascript` from 6.0.2 to 7.0.4
- [Release notes](https://github.com/yahoo/serialize-javascript/releases)
- [Commits](yahoo/serialize-javascript@v6.0.2...v7.0.4)

Updates `@rollup/plugin-terser` from 0.4.4 to 1.0.0
- [Changelog](https://github.com/rollup/plugins/blob/master/packages/terser/CHANGELOG.md)
- [Commits](https://github.com/rollup/plugins/commits/beep-v1.0.0/packages/terser)

---
updated-dependencies:
- dependency-name: serialize-javascript
  dependency-version: 7.0.4
  dependency-type: indirect
- dependency-name: "@rollup/plugin-terser"
  dependency-version: 1.0.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

package-lock.json

@@ -11,7 +11,7 @@
     "@11ty/eleventy": "^3.1.2",
     "@11ty/eleventy-plugin-handlebars": "^1.0.0",
     "@rollup/plugin-node-resolve": "^16.0.1",
-    "@rollup/plugin-terser": "^0.4.4",
+    "@rollup/plugin-terser": "^1.0.0",
     "lit-html": "^3.3.1",
     "marked": "^16.1.2",
     "rimraf": "^6.0.1",