Bump terser from 5.6.1 to 5.7.0

Bumps [terser](https://github.com/terser/terser) from 5.6.1 to 5.7.0.
- [Release notes](https://github.com/terser/terser/releases)
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/terser/terser/commits)

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

Author: dependabot[bot]

package-lock.json

@@ -5,6 +5,6 @@
     "html-minifier": "^4.0.0",
     "stylelint": "^13.13.0",
     "stylelint-config-standard": "^22.0.0",
-    "terser": "^5.6.1"
+    "terser": "^5.7.0"
   }
 }