Bump rollup from 2.29.0 to 2.30.0 in /token-swap/js (#619)

Bumps [rollup](https://github.com/rollup/rollup) from 2.29.0 to 2.30.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.29.0...v2.30.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

token-swap/js/package-lock.json

@@ -5704,9 +5704,9 @@
       }
     },
     "rollup": {
-      "version": "2.29.0",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.29.0.tgz",
-      "integrity": "sha512-gtU0sjxMpsVlpuAf4QXienPmUAhd6Kc7owQ4f5lypoxBW18fw2UNYZ4NssLGsri6WhUZkE/Ts3EMRebN+gNLiQ==",
+      "version": "2.30.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.30.0.tgz",
+      "integrity": "sha512-j4K1hUZfgFM03DUpayd3c7kZW+2wDbI6rj7ssQxpCpL1vsGpaM0vSorxBuePFwQDFq9O2DI6AOQbm174Awsq4w==",
       "dev": true,
       "requires": {
         "fsevents": "~2.1.2"