build(deps-dev): bump rollup from 2.38.0 to 2.38.4 in /token-swap/js (#1156)

Bumps [rollup](https://github.com/rollup/rollup) from 2.38.0 to 2.38.4.
- [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/v2.38.0...v2.38.4)

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

@@ -6370,12 +6370,21 @@
       }
     },
     "rollup": {
-      "version": "2.38.0",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.38.0.tgz",
-      "integrity": "sha512-ay9zDiNitZK/LNE/EM2+v5CZ7drkB2xyDljvb1fQJCGnq43ZWRkhxN145oV8GmoW1YNi4sA/1Jdkr2LfawJoXw==",
+      "version": "2.38.4",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.38.4.tgz",
+      "integrity": "sha512-B0LcJhjiwKkTl79aGVF/u5KdzsH8IylVfV56Ut6c9ouWLJcUK17T83aZBetNYSnZtXf2OHD4+2PbmRW+Fp5ulg==",
       "dev": true,
       "requires": {
-        "fsevents": "~2.1.2"
+        "fsevents": "~2.3.1"
+      },
+      "dependencies": {
+        "fsevents": {
+          "version": "2.3.1",
+          "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.1.tgz",
+          "integrity": "sha512-YR47Eg4hChJGAB1O3yEAOkGO+rlzutoICGqGo9EZ4lKWokzZRSyIW1QmTzqjtw8MJdj9srP869CuWw/hyzSiBw==",
+          "dev": true,
+          "optional": true
+        }
       }
     },
     "rollup-plugin-copy": {