Bump immutable from 4.1.0 to 4.3.8

Bumps [immutable](https://github.com/immutable-js/immutable-js) from 4.1.0 to 4.3.8.
- [Release notes](https://github.com/immutable-js/immutable-js/releases)
- [Changelog](https://github.com/immutable-js/immutable-js/blob/main/CHANGELOG.md)
- [Commits](https://github.com/immutable-js/immutable-js/compare/v4.1.0...v4.3.8)

---
updated-dependencies:
- dependency-name: immutable
  dependency-version: 4.3.8
  dependency-type: indirect
...

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

package-lock.json

@@ -11372,7 +11372,9 @@
       }
     },
     "node_modules/immutable": {
-      "version": "4.1.0",
+      "version": "4.3.8",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.3.8.tgz",
+      "integrity": "sha512-d/Ld9aLbKpNwyl0KiM2CT1WYvkitQ1TSvmRtkcV8FKStiDoA7Slzgjmb/1G2yhKM1p0XeNOieaTbFZmU1d3Xuw==",
       "dev": true,
       "license": "MIT"
     },